cgribexlib.c 284 KB
Newer Older
Uwe Schulzweida's avatar
Uwe Schulzweida committed
1

Uwe Schulzweida's avatar
Uwe Schulzweida committed
2
/* Automatically generated by m214003 at 2013-03-05, do not edit */
3

Uwe Schulzweida's avatar
Uwe Schulzweida committed
4
/* CGRIBEXLIB_VERSION="1.6.0" */
Uwe Schulzweida's avatar
Uwe Schulzweida committed
5

Uwe Schulzweida's avatar
Uwe Schulzweida committed
6
7
8
9
#ifdef _ARCH_PWR6
#pragma options nostrict
#endif

Uwe Schulzweida's avatar
Uwe Schulzweida committed
10
11
12
13
14
15
16
17
18
#if defined (HAVE_CONFIG_H)
#  include "config.h"
#endif

#include <string.h>
#include <ctype.h>
#include <stdarg.h>
#include <sys/types.h>

19

Uwe Schulzweida's avatar
Uwe Schulzweida committed
20
21
22
#include "file.h"
#include "dmemory.h"
#include "dtypes.h"
Uwe Schulzweida's avatar
Uwe Schulzweida committed
23
#include "calendar.h"
24
#include "timebase.h"
Uwe Schulzweida's avatar
Uwe Schulzweida committed
25
26
27
28

#ifndef _GRIB_INT_H
#define _GRIB_INT_H

29
30
31
32
#if defined (HAVE_CONFIG_H)
#  include "config.h"
#endif

Uwe Schulzweida's avatar
Uwe Schulzweida committed
33
34
35
36
37
38
#include <stdio.h>
#include <stdlib.h>
#include <math.h>
#include <float.h>


Uwe Schulzweida's avatar
Uwe Schulzweida committed
39
40
#if ! defined   (_CGRIBEX_H)
#  include "cgribex.h"
Uwe Schulzweida's avatar
Uwe Schulzweida committed
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
#endif
#if ! defined   (_ERROR_H)
#  include "error.h"
#endif
#if ! defined   (_DTYPES_H)
#  include "dtypes.h"
#endif

#if ! defined   (FALSE)
#  define  FALSE  0
#endif

#if ! defined   (TRUE)
#  define  TRUE  1
#endif

#if ! defined   (UCHAR)
#  define  UCHAR  unsigned char
#endif

Uwe Schulzweida's avatar
Uwe Schulzweida committed
61

Uwe Schulzweida's avatar
Uwe Schulzweida committed
62
#if defined (CRAY) || defined (SX) || defined (__uxpch__)
Uwe Schulzweida's avatar
Uwe Schulzweida committed
63
64
65
#  define VECTORCODE
#endif

Uwe Schulzweida's avatar
Uwe Schulzweida committed
66

Uwe Schulzweida's avatar
Uwe Schulzweida committed
67
#if defined (VECTORCODE)
Uwe Schulzweida's avatar
Uwe Schulzweida committed
68
#if  defined  (INT32)
69
#  define  GRIBPACK     unsigned INT32
Uwe Schulzweida's avatar
Uwe Schulzweida committed
70
71
72
#  define  PACK_GRIB    packInt32
#  define  UNPACK_GRIB  unpackInt32
#else
73
#  define  GRIBPACK     unsigned INT64
Uwe Schulzweida's avatar
Uwe Schulzweida committed
74
75
76
#  define  PACK_GRIB    packInt64
#  define  UNPACK_GRIB  unpackInt64
#endif
Uwe Schulzweida's avatar
Uwe Schulzweida committed
77
78
79
#else
#  define  GRIBPACK     unsigned char
#endif
Uwe Schulzweida's avatar
Uwe Schulzweida committed
80

Uwe Schulzweida's avatar
Uwe Schulzweida committed
81
82
#define  U_BYTEORDER     static union {unsigned long l; unsigned char c[sizeof(long)];} u_byteorder = {1}
#define  IS_BIGENDIAN()  (u_byteorder.c[sizeof(long) - 1])
Uwe Schulzweida's avatar
Uwe Schulzweida committed
83

Uwe Schulzweida's avatar
Uwe Schulzweida committed
84
#if defined (__xlC__) /* performance problems on IBM */
Uwe Schulzweida's avatar
cleanup    
Uwe Schulzweida committed
85
86
87
88
#ifndef DBL_IS_NAN
#  define DBL_IS_NAN(x)     ((x) != (x))
#endif
#else
89
#ifndef DBL_IS_NAN
Uwe Schulzweida's avatar
Uwe Schulzweida committed
90
#if  defined  (HAVE_DECL_ISNAN)
91
#  define DBL_IS_NAN(x)     (isnan(x))
92
#elif  defined  (FP_NAN)
93
94
95
96
97
#  define DBL_IS_NAN(x)     (fpclassify(x) == FP_NAN)
#else
#  define DBL_IS_NAN(x)     ((x) != (x))
#endif
#endif
Uwe Schulzweida's avatar
Uwe Schulzweida committed
98
#endif
99

100
101
102
103
104
#ifndef DBL_IS_EQUAL
/*#define DBL_IS_EQUAL(x,y) (!(x < y || y < x)) */
#  define DBL_IS_EQUAL(x,y) (DBL_IS_NAN(x)||DBL_IS_NAN(y)?(DBL_IS_NAN(x)&&DBL_IS_NAN(y)?1:0):!(x < y || y < x))
#endif

105
106
107
#ifndef IS_EQUAL
#  define IS_NOT_EQUAL(x,y) (x < y || y < x)
#  define IS_EQUAL(x,y)     (!IS_NOT_EQUAL(x,y))
Uwe Schulzweida's avatar
Uwe Schulzweida committed
108
109
110
#endif


111
112
113
#define  JP23SET    0x7FFFFF  /* 2**23 - 1 (---> 8388607)  */

#define  POW_2_M24  0.000000059604644775390625  /*  pow(2.0, -24.0) */
Uwe Schulzweida's avatar
Uwe Schulzweida committed
114
115
116

double intpow2(int x);

117
118
119
int gribrec_len(int b1, int b2, int b3);
int correct_bdslen(int bdslen, long recsize, long gribpos);

Uwe Schulzweida's avatar
Uwe Schulzweida committed
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
/* CDI converter routines */

/* param format:  DDDCCCNNN */

void    cdiDecodeParam(int param, int *dis, int *cat, int *num);
int     cdiEncodeParam(int dis, int cat, int num);

/* date format:  YYYYMMDD */
/* time format:  hhmmss   */

void    cdiDecodeDate(int date, int *year, int *month, int *day);
int     cdiEncodeDate(int year, int month, int day);

void    cdiDecodeTime(int time, int *hour, int *minute, int *second);
int     cdiEncodeTime(int hour, int minute, int second);

Uwe Schulzweida's avatar
Uwe Schulzweida committed
136
137
138
139
140
141
142
143
/* CALENDAR types */

#define  CALENDAR_STANDARD        0  /* don't change this value (used also in cgribexlib)! */
#define  CALENDAR_PROLEPTIC       1
#define  CALENDAR_360DAYS         2
#define  CALENDAR_365DAYS         3
#define  CALENDAR_366DAYS         4
#define  CALENDAR_NONE            5
Uwe Schulzweida's avatar
Uwe Schulzweida committed
144
145
146

extern FILE *grprsm;

Uwe Schulzweida's avatar
Uwe Schulzweida committed
147
extern int  CGRIBEX_Debug;
Uwe Schulzweida's avatar
Uwe Schulzweida committed
148
149
150
151
152
153
154
155
156
157

void   gprintf(const char *caller, const char *fmt, ...);

void   grsdef(void);

void   prtbin(int kin, int knbit, int *kout, int *kerr);
void   confp3(double pval, int *kexp, int *kmant, int kbits, int kround);
double decfp2(int kexp, int kmant);
void   ref2ibm(double *pref, int kbits);

Uwe Schulzweida's avatar
Uwe Schulzweida committed
158
159
160
161
void   scaleComplex(double *fpdata, int pcStart, int pcScale, int trunc, int inv);
void   scatterComplex(double *fpdata, int pcStart, int trunc, int nsp);
void   gatherComplex(double *fpdata, int pcStart, int trunc, int nsp);

Uwe Schulzweida's avatar
Uwe Schulzweida committed
162
163
164
void   scm0(double *pdl, double *pdr, double *pfl, double *pfr, int klg);
int    rowina2(double *p, int ko, int ki, double *pw,
	       int kcode, double msval, int *kret);
165
int    rowina3(double *p, int ko, int ki, double *pw,
Uwe Schulzweida's avatar
Uwe Schulzweida committed
166
	       int kcode, double msval, int *kret, int omisng, int operio, int oveggy);
Uwe Schulzweida's avatar
Uwe Schulzweida committed
167
168
int    qu2reg2(double *pfield, int *kpoint, int klat, int klon,
	       double *ztemp, double msval, int *kret);
169
int    qu2reg3(double *pfield, int *kpoint, int klat, int klon,
Uwe Schulzweida's avatar
Uwe Schulzweida committed
170
	       double msval, int *kret, int omisng, int operio, int oveggy);
Uwe Schulzweida's avatar
Uwe Schulzweida committed
171
172

#if  defined  (INT32)
Uwe Schulzweida's avatar
Uwe Schulzweida committed
173
long   packInt32(unsigned INT32 *up, unsigned char *cp, long bc, long tc);
Uwe Schulzweida's avatar
Uwe Schulzweida committed
174
#endif
Uwe Schulzweida's avatar
Uwe Schulzweida committed
175
long   packInt64(unsigned INT64 *up, unsigned char *cp, long bc, long tc);
Uwe Schulzweida's avatar
Uwe Schulzweida committed
176
#if  defined  (INT32)
Uwe Schulzweida's avatar
Uwe Schulzweida committed
177
long   unpackInt32(unsigned char *cp, unsigned INT32 *up, long bc, long tc);
Uwe Schulzweida's avatar
Uwe Schulzweida committed
178
#endif
Uwe Schulzweida's avatar
Uwe Schulzweida committed
179
long   unpackInt64(unsigned char *cp, unsigned INT64 *up, long bc, long tc);
Uwe Schulzweida's avatar
Uwe Schulzweida committed
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197

void  gribEncode(int *isec0, int *isec1, int *isec2, double *fsec2, int *isec3,
		 double *fsec3, int *isec4, double *fsec4, int klenp, int *kgrib,
		 int kleng, int *kword, int efunc, int *kret);

void  gribDecode(int *isec0, int *isec1, int *isec2, double *fsec2, int *isec3,
		 double *fsec3, int *isec4, double *fsec4, int klenp, int *kgrib,
		 int kleng, int *kword, int dfunc, int *kret);

#endif  /* _GRIB_INT_H */
#ifndef _GRIBDECODE_H
#define _GRIBDECODE_H

#define  UNDEFINED          9.999e20


#define  GET_INT3(a,b,c)    ((1-(int) ((unsigned) (a & 128) >> 6)) * (int) (((a & 127) << 16)+(b<<8)+c))
#define  GET_INT2(a,b)      ((1-(int) ((unsigned) (a & 128) >> 6)) * (int) (((a & 127) << 8) + b))
198
#define  GET_INT1(a)        ((1-(int) ((unsigned) (a & 128) >> 6)) * (int) (a&127))
Uwe Schulzweida's avatar
Uwe Schulzweida committed
199
200
201
202
203
204
205

/* this requires a 32-bit default integer machine */
#define  GET_UINT4(a,b,c,d) ((int) ((a << 24) + (b << 16) + (c << 8) + (d)))
#define  GET_UINT3(a,b,c)   ((int) ((a << 16) + (b << 8)  + (c)))
#define  GET_UINT2(a,b)     ((int) ((a << 8)  + (b)))
#define  GET_UINT1(a)       ((int)  (a))

Uwe Schulzweida's avatar
Uwe Schulzweida committed
206
207
208
#define  BUDG_START(s)      (s[0]=='B' && s[1]=='U' && s[2]=='D' && s[3]=='G')
#define  TIDE_START(s)      (s[0]=='T' && s[1]=='I' && s[2]=='D' && s[3]=='E')
#define  GRIB_START(s)      (s[0]=='G' && s[1]=='R' && s[2]=='I' && s[3]=='B')
Uwe Schulzweida's avatar
Uwe Schulzweida committed
209
#define  GRIB_FIN(s)        (s[0]=='7' && s[1]=='7' && s[2]=='7' && s[3]=='7')
Uwe Schulzweida's avatar
Uwe Schulzweida committed
210

Uwe Schulzweida's avatar
Uwe Schulzweida committed
211
/* GRIB1 Section 0: Indicator Section (IS) */
Uwe Schulzweida's avatar
Uwe Schulzweida committed
212

213
#define  GRIB1_SECLEN(s)     GET_INT3(s[ 4], s[ 5], s[ 6])
Uwe Schulzweida's avatar
Uwe Schulzweida committed
214
#define  GRIB_EDITION(s)     GET_UINT1(s[ 7])
Uwe Schulzweida's avatar
Uwe Schulzweida committed
215

Uwe Schulzweida's avatar
Uwe Schulzweida committed
216
/* GRIB1 Section 1: Product Definition Section (PDS) */
Uwe Schulzweida's avatar
Uwe Schulzweida committed
217
218
219
220
221
222
223
224
225
226
227
228
229
230

#define  PDS_Len             GET_UINT3(pds[ 0], pds[ 1], pds[ 2])
#define  PDS_CodeTable       GET_UINT1(pds[ 3])
#define  PDS_CenterID        GET_UINT1(pds[ 4])
#define  PDS_ModelID         GET_UINT1(pds[ 5])
#define  PDS_GridDefinition  GET_UINT1(pds[ 6])
#define  PDS_Sec2Or3Flag     GET_UINT1(pds[ 7])
#define  PDS_HAS_GDS         ((pds[7] & 128) != 0)
#define  PDS_HAS_BMS         ((pds[7] &  64) != 0)
#define  PDS_Parameter       GET_UINT1(pds[ 8])
#define  PDS_LevelType       GET_UINT1(pds[ 9])
#define  PDS_Level1          (pds[10])
#define  PDS_Level2	     (pds[11])
#define  PDS_Level	     GET_UINT2(pds[10], pds[11])
Uwe Schulzweida's avatar
Uwe Schulzweida committed
231
#define  PDS_Year            GET_INT1(pds[12])
Uwe Schulzweida's avatar
Uwe Schulzweida committed
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
#define  PDS_Month           GET_UINT1(pds[13])
#define  PDS_Day             GET_UINT1(pds[14])
#define  PDS_Hour            GET_UINT1(pds[15])
#define  PDS_Minute          GET_UINT1(pds[16])
#define  PDS_Date            (PDS_Year*10000+PDS_Month*100+PDS_Day)
#define  PDS_Time            (PDS_Hour*100+PDS_Minute)
#define  PDS_TimeUnit        GET_UINT1(pds[17])
#define  PDS_TimePeriod1     GET_UINT1(pds[18])
#define  PDS_TimePeriod2     GET_UINT1(pds[19])
#define  PDS_TimeRange       GET_UINT1(pds[20])
#define  PDS_AvgNum          GET_UINT2(pds[21], pds[22])
#define  PDS_AvgMiss         GET_UINT1(pds[23])
#define  PDS_Century         GET_UINT1(pds[24])
#define  PDS_Subcenter       GET_UINT1(pds[25])
#define  PDS_DecimalScale    GET_INT2(pds[26],pds[27])


Uwe Schulzweida's avatar
Uwe Schulzweida committed
249
/* GRIB1 Section 2: Grid Description Section (GDS) */
Uwe Schulzweida's avatar
Uwe Schulzweida committed
250
251
252
253

#define  GDS_Len             ((gds) == NULL ? 0 : GET_UINT3(gds[ 0], gds[ 1], gds[ 2]))
#define  GDS_NV              GET_UINT1(gds[ 3])
#define  GDS_PVPL            GET_UINT1(gds[ 4])
Uwe Schulzweida's avatar
Uwe Schulzweida committed
254
255
#define  GDS_PV	             ((gds[3] ==    0) ? -1 : (int) gds[4] - 1)
#define  GDS_PL	             ((gds[4] == 0xFF) ? -1 : (int) gds[3] * 4 + (int) gds[4] - 1)
Uwe Schulzweida's avatar
Uwe Schulzweida committed
256
257
258
#define  GDS_GridType        GET_UINT1(gds[ 5])


Uwe Schulzweida's avatar
Uwe Schulzweida committed
259
/* GRIB1 Triangular grid of DWD */
Uwe Schulzweida's avatar
Uwe Schulzweida committed
260
261
262
263
264
265
266
267
268
269
#define  GDS_GME_NI2         GET_UINT2(gds[ 6], gds[ 7])
#define  GDS_GME_NI3         GET_UINT2(gds[ 8], gds[ 9])
#define  GDS_GME_ND          GET_UINT3(gds[10], gds[11], gds[12])
#define  GDS_GME_NI          GET_UINT3(gds[13], gds[14], gds[15])
#define  GDS_GME_AFlag       GET_UINT1(gds[16])
#define  GDS_GME_LatPP       GET_INT3(gds[17], gds[18], gds[19])
#define  GDS_GME_LonPP       GET_INT3(gds[20], gds[21], gds[22])
#define  GDS_GME_LonMPL      GET_INT3(gds[23], gds[24], gds[25])
#define  GDS_GME_BFlag       GET_UINT1(gds[27])

Uwe Schulzweida's avatar
Uwe Schulzweida committed
270
/* GRIB1 Spectral */
Uwe Schulzweida's avatar
Uwe Schulzweida committed
271
272
273
274
275
276
#define  GDS_PentaJ          GET_UINT2(gds[ 6], gds[ 7])
#define  GDS_PentaK          GET_UINT2(gds[ 8], gds[ 9])
#define  GDS_PentaM          GET_UINT2(gds[10], gds[11])
#define  GDS_RepType         GET_UINT1(gds[12])
#define  GDS_RepMode         GET_UINT1(gds[13])

Uwe Schulzweida's avatar
Uwe Schulzweida committed
277
/* GRIB1 Regular grid */
Uwe Schulzweida's avatar
Uwe Schulzweida committed
278
279
280
281
282
283
284
#define  GDS_NumLon          GET_UINT2(gds[ 6], gds[ 7])
#define  GDS_NumLat          GET_UINT2(gds[ 8], gds[ 9])
#define  GDS_FirstLat        GET_INT3(gds[10], gds[11], gds[12])
#define  GDS_FirstLon        GET_INT3(gds[13], gds[14], gds[15])
#define  GDS_ResFlag         GET_UINT1(gds[16])
#define  GDS_LastLat         GET_INT3(gds[17], gds[18], gds[19])
#define  GDS_LastLon         GET_INT3(gds[20], gds[21], gds[22])
Uwe Schulzweida's avatar
Uwe Schulzweida committed
285
286
287
#define  GDS_LonIncr         GET_UINT2(gds[23], gds[24])
#define  GDS_LatIncr         GET_UINT2(gds[25], gds[26])
#define  GDS_NumPar          GET_UINT2(gds[25], gds[26])
Uwe Schulzweida's avatar
Uwe Schulzweida committed
288
289
290
291
292
#define  GDS_ScanFlag        GET_UINT1(gds[27])
#define  GDS_LatSP           GET_INT3(gds[32], gds[33], gds[34])
#define  GDS_LonSP           GET_INT3(gds[35], gds[36], gds[37])
#define  GDS_RotAngle        GET_Real(&(gds[38]))

Uwe Schulzweida's avatar
Uwe Schulzweida committed
293
/* GRIB1 Lambert */
294
295
296
297
298
299
300
301
#define  GDS_Lambert_Lov     GET_INT3(gds[17], gds[18], gds[19])
#define  GDS_Lambert_dx	     GET_INT3(gds[20], gds[21], gds[22])
#define  GDS_Lambert_dy	     GET_INT3(gds[23], gds[24], gds[25])
#define  GDS_Lambert_ProjFlag GET_UINT1(gds[26])
#define  GDS_Lambert_LatS1   GET_INT3(gds[28], gds[29], gds[30])
#define  GDS_Lambert_LatS2   GET_INT3(gds[31], gds[32], gds[33])
#define  GDS_Lambert_LatSP   GET_INT3(gds[34], gds[35], gds[36])
#define  GDS_Lambert_LonSP   GET_INT3(gds[37], gds[37], gds[37])
302

Uwe Schulzweida's avatar
Uwe Schulzweida committed
303
/* GRIB1 Section 3: Bit Map Section (BMS) */
Uwe Schulzweida's avatar
Uwe Schulzweida committed
304
305
306
307
308
309
310

#define  BMS_Len	     ((bms) == NULL ? 0 : (int) (bms[0]<<16)+(bms[1]<<8)+bms[2])
#define  BMS_UnusedBits      (bms[3])
#define  BMS_Numeric         
#define  BMS_Bitmap	     ((bms) == NULL ? NULL : (bms)+6)
#define  BMS_BitmapSize      (((((bms[0]<<16)+(bms[1]<<8)+bms[2]) - 6)<<3) - bms[3])

Uwe Schulzweida's avatar
Uwe Schulzweida committed
311
/* GRIB1 Section 4: Binary Data Section (BDS) */
Uwe Schulzweida's avatar
Uwe Schulzweida committed
312
313
314
315
316
317
318

#define  BDS_Len	    ((int) ((bds[0]<<16)+(bds[1]<<8)+bds[2]))
#define  BDS_Flag	    (bds[3])
#define  BDS_BinScale       GET_INT2(bds[ 4], bds[ 5])
#define  BDS_RefValue       decfp2((int)bds[ 6], GET_UINT3(bds[ 7], bds[ 8], bds[ 9]))
#define  BDS_NumBits        ((int) bds[10])
#define  BDS_RealCoef       decfp2((int)bds[zoff+11], GET_UINT3(bds[zoff+12], bds[zoff+13], bds[zoff+14]))
Uwe Schulzweida's avatar
Uwe Schulzweida committed
319
320
#define  BDS_PackData       ((int) ((bds[zoff+11]<<8) + bds[zoff+12]))
#define  BDS_Power          GET_INT2(bds[zoff+13], bds[zoff+14])
Uwe Schulzweida's avatar
Uwe Schulzweida committed
321
322
#define  BDS_Z              (bds[13])

Uwe Schulzweida's avatar
Uwe Schulzweida committed
323
324
325
326
327
328
/* GRIB1 Section 5: End Section (ES) */

/* GRIB2 */

#define  GRIB2_SECLEN(section)   (GET_UINT4(section[0], section[1], section[2], section[3]))
#define  GRIB2_SECNUM(section)   (GET_UINT1(section[4]))
Uwe Schulzweida's avatar
Uwe Schulzweida committed
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347

#endif  /* _GRIBDECODE_H */
#ifndef _GRIBENCODE_H
#define _GRIBENCODE_H


#define PutnZero(n) \
{ \
  int i; \
  for ( i = z; i < z+n; i++ ) lGrib[i] = 0; \
  z += n; \
}

#define Put1Byte(Value)  (lGrib[z++] = (Value))
#define Put2Byte(Value) ((lGrib[z++] = (Value) >>  8), \
                         (lGrib[z++] = (Value)))
#define Put3Byte(Value) ((lGrib[z++] = (Value) >> 16), \
                         (lGrib[z++] = (Value) >>  8), \
                         (lGrib[z++] = (Value)))
Uwe Schulzweida's avatar
Uwe Schulzweida committed
348
349
350
351
#define Put4Byte(Value) ((lGrib[z++] = (Value) >> 24), \
                         (lGrib[z++] = (Value) >> 16), \
                         (lGrib[z++] = (Value) >>  8), \
                         (lGrib[z++] = (Value)))
Uwe Schulzweida's avatar
Uwe Schulzweida committed
352

Uwe Schulzweida's avatar
Uwe Schulzweida committed
353
354
355
#define Put1Int(Value)  {ival = Value; if ( ival < 0 ) ival =     0x80 - ival; Put1Byte(ival);}
#define Put2Int(Value)  {ival = Value; if ( ival < 0 ) ival =   0x8000 - ival; Put2Byte(ival);}
#define Put3Int(Value)  {ival = Value; if ( ival < 0 ) ival = 0x800000 - ival; Put3Byte(ival);}
Uwe Schulzweida's avatar
Uwe Schulzweida committed
356
357
358
359
360
361
362
363
364

#define Put1Real(Value)          \
{                                \
  confp3(Value, &exponent, &mantissa, BitsPerInt, 1); \
  Put1Byte(exponent);            \
  Put3Byte(mantissa);            \
}

#endif  /* _GRIBENCODE_H */
Uwe Schulzweida's avatar
Uwe Schulzweida committed
365
366
#include <stdio.h>
#include <math.h>
Uwe Schulzweida's avatar
Uwe Schulzweida committed
367
368


Uwe Schulzweida's avatar
Uwe Schulzweida committed
369
const double const _pow2tab[158] = {
Uwe Schulzweida's avatar
Uwe Schulzweida committed
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
 /* pow(2.0,  0.0) */  1.0,
 /* pow(2.0,  1.0) */  2.0,
 /* pow(2.0,  2.0) */  4.0,
 /* pow(2.0,  3.0) */  8.0,
 /* pow(2.0,  4.0) */  16.0,
 /* pow(2.0,  5.0) */  32.0,
 /* pow(2.0,  6.0) */  64.0,
 /* pow(2.0,  7.0) */  128.0,
 /* pow(2.0,  8.0) */  256.0,
 /* pow(2.0,  9.0) */  512.0,
 /* pow(2.0, 10.0) */  1024.0,
 /* pow(2.0, 11.0) */  2048.0,
 /* pow(2.0, 12.0) */  4096.0,
 /* pow(2.0, 13.0) */  8192.0,
 /* pow(2.0, 14.0) */  16384.0,
 /* pow(2.0, 15.0) */  32768.0,
 /* pow(2.0, 16.0) */  65536.0,
 /* pow(2.0, 17.0) */  131072.0,
 /* pow(2.0, 18.0) */  262144.0,
 /* pow(2.0, 19.0) */  524288.0,
 /* pow(2.0, 20.0) */  1048576.0,
 /* pow(2.0, 21.0) */  2097152.0,
 /* pow(2.0, 22.0) */  4194304.0,
 /* pow(2.0, 23.0) */  8388608.0,
 /* pow(2.0, 24.0) */  16777216.0,
 /* pow(2.0, 25.0) */  33554432.0,
 /* pow(2.0, 26.0) */  67108864.0,
 /* pow(2.0, 27.0) */  134217728.0,
 /* pow(2.0, 28.0) */  268435456.0,
 /* pow(2.0, 29.0) */  536870912.0,
 /* pow(2.0, 30.0) */  1073741824.0,
 /* pow(2.0, 31.0) */  2147483648.0,
 /* pow(2.0, 32.0) */  4294967296.0,
 /* pow(2.0, 33.0) */  8589934592.0,
 /* pow(2.0, 34.0) */  17179869184.0,
 /* pow(2.0, 35.0) */  34359738368.0,
 /* pow(2.0, 36.0) */  68719476736.0,
 /* pow(2.0, 37.0) */  137438953472.0,
 /* pow(2.0, 38.0) */  274877906944.0,
 /* pow(2.0, 39.0) */  549755813888.0,
 /* pow(2.0, 40.0) */  1099511627776.0,
 /* pow(2.0, 41.0) */  2199023255552.0,
 /* pow(2.0, 42.0) */  4398046511104.0,
 /* pow(2.0, 43.0) */  8796093022208.0,
 /* pow(2.0, 44.0) */  17592186044416.0,
 /* pow(2.0, 45.0) */  35184372088832.0,
 /* pow(2.0, 46.0) */  70368744177664.0,
 /* pow(2.0, 47.0) */  140737488355328.0,
 /* pow(2.0, 48.0) */  281474976710656.0,
 /* pow(2.0, 49.0) */  562949953421312.0,
 /* pow(2.0, 50.0) */  1125899906842624.0,
 /* pow(2.0, 51.0) */  2251799813685248.0,
 /* pow(2.0, 52.0) */  4503599627370496.0,
 /* pow(2.0, 53.0) */  9007199254740992.0,
 /* pow(2.0, 54.0) */  18014398509481984.0,
 /* pow(2.0, 55.0) */  36028797018963968.0,
 /* pow(2.0, 56.0) */  72057594037927936.0,
 /* pow(2.0, 57.0) */  144115188075855872.0,
 /* pow(2.0, 58.0) */  288230376151711744.0,
 /* pow(2.0, 59.0) */  576460752303423488.0,
 /* pow(2.0, 60.0) */  1152921504606846976.0,
 /* pow(2.0, 61.0) */  2305843009213693952.0,
 /* pow(2.0, 62.0) */  4611686018427387904.0,
 /* pow(2.0, 63.0) */  9223372036854775808.0,
 /* pow(2.0, 64.0) */  18446744073709551616.0,
 /* pow(2.0, 65.0) */  36893488147419103232.0,
 /* pow(2.0, 66.0) */  73786976294838206464.0,
 /* pow(2.0, 67.0) */  147573952589676412928.0,
 /* pow(2.0, 68.0) */  295147905179352825856.0,
 /* pow(2.0, 69.0) */  590295810358705651712.0,
 /* pow(2.0, 70.0) */  1180591620717411303424.0,
 /* pow(2.0, 71.0) */  2361183241434822606848.0,
 /* pow(2.0, 72.0) */  4722366482869645213696.0,
 /* pow(2.0, 73.0) */  9444732965739290427392.0,
 /* pow(2.0, 74.0) */  18889465931478580854784.0,
 /* pow(2.0, 75.0) */  37778931862957161709568.0,
 /* pow(2.0, 76.0) */  75557863725914323419136.0,
 /* pow(2.0, 77.0) */  151115727451828646838272.0,
 /* pow(2.0, 78.0) */  302231454903657293676544.0,
 /* pow(2.0, 79.0) */  604462909807314587353088.0,
 /* pow(2.0, 80.0) */  1208925819614629174706176.0,
 /* pow(2.0, 81.0) */  2417851639229258349412352.0,
 /* pow(2.0, 82.0) */  4835703278458516698824704.0,
 /* pow(2.0, 83.0) */  9671406556917033397649408.0,
 /* pow(2.0, 84.0) */  19342813113834066795298816.0,
 /* pow(2.0, 85.0) */  38685626227668133590597632.0,
 /* pow(2.0, 86.0) */  77371252455336267181195264.0,
 /* pow(2.0, 87.0) */  154742504910672534362390528.0,
 /* pow(2.0, 88.0) */  309485009821345068724781056.0,
 /* pow(2.0, 89.0) */  618970019642690137449562112.0,
 /* pow(2.0, 90.0) */  1237940039285380274899124224.0,
 /* pow(2.0, 91.0) */  2475880078570760549798248448.0,
 /* pow(2.0, 92.0) */  4951760157141521099596496896.0,
 /* pow(2.0, 93.0) */  9903520314283042199192993792.0,
 /* pow(2.0, 94.0) */  19807040628566084398385987584.0,
 /* pow(2.0, 95.0) */  39614081257132168796771975168.0,
 /* pow(2.0, 96.0) */  79228162514264337593543950336.0,
 /* pow(2.0, 97.0) */  158456325028528675187087900672.0,
 /* pow(2.0, 98.0) */  316912650057057350374175801344.0,
 /* pow(2.0, 99.0) */  633825300114114700748351602688.0,
 /* pow(2.0, 100.0) */  1267650600228229401496703205376.0,
 /* pow(2.0, 101.0) */  2535301200456458802993406410752.0,
 /* pow(2.0, 102.0) */  5070602400912917605986812821504.0,
 /* pow(2.0, 103.0) */  10141204801825835211973625643008.0,
 /* pow(2.0, 104.0) */  20282409603651670423947251286016.0,
 /* pow(2.0, 105.0) */  40564819207303340847894502572032.0,
 /* pow(2.0, 106.0) */  81129638414606681695789005144064.0,
 /* pow(2.0, 107.0) */  162259276829213363391578010288128.0,
 /* pow(2.0, 108.0) */  324518553658426726783156020576256.0,
 /* pow(2.0, 109.0) */  649037107316853453566312041152512.0,
 /* pow(2.0, 110.0) */  1298074214633706907132624082305024.0,
 /* pow(2.0, 111.0) */  2596148429267413814265248164610048.0,
 /* pow(2.0, 112.0) */  5192296858534827628530496329220096.0,
 /* pow(2.0, 113.0) */  10384593717069655257060992658440192.0,
 /* pow(2.0, 114.0) */  20769187434139310514121985316880384.0,
 /* pow(2.0, 115.0) */  41538374868278621028243970633760768.0,
 /* pow(2.0, 116.0) */  83076749736557242056487941267521536.0,
 /* pow(2.0, 117.0) */  166153499473114484112975882535043072.0,
 /* pow(2.0, 118.0) */  332306998946228968225951765070086144.0,
 /* pow(2.0, 119.0) */  664613997892457936451903530140172288.0,
 /* pow(2.0, 120.0) */  1329227995784915872903807060280344576.0,
 /* pow(2.0, 121.0) */  2658455991569831745807614120560689152.0,
 /* pow(2.0, 122.0) */  5316911983139663491615228241121378304.0,
 /* pow(2.0, 123.0) */  10633823966279326983230456482242756608.0,
 /* pow(2.0, 124.0) */  21267647932558653966460912964485513216.0,
 /* pow(2.0, 125.0) */  42535295865117307932921825928971026432.0,
 /* pow(2.0, 126.0) */  85070591730234615865843651857942052864.0,
 /* pow(2.0, 127.0) */  170141183460469231731687303715884105728.0,
 /* pow(2.0, 128.0) */  340282366920938463463374607431768211456.0,
 /* pow(2.0, 129.0) */  680564733841876926926749214863536422912.0,
 /* pow(2.0, 130.0) */  1361129467683753853853498429727072845824.0,
 /* pow(2.0, 131.0) */  2722258935367507707706996859454145691648.0,
 /* pow(2.0, 132.0) */  5444517870735015415413993718908291383296.0,
 /* pow(2.0, 133.0) */  10889035741470030830827987437816582766592.0,
 /* pow(2.0, 134.0) */  21778071482940061661655974875633165533184.0,
 /* pow(2.0, 135.0) */  43556142965880123323311949751266331066368.0,
 /* pow(2.0, 136.0) */  87112285931760246646623899502532662132736.0,
 /* pow(2.0, 137.0) */  174224571863520493293247799005065324265472.0,
 /* pow(2.0, 138.0) */  348449143727040986586495598010130648530944.0,
 /* pow(2.0, 139.0) */  696898287454081973172991196020261297061888.0,
 /* pow(2.0, 140.0) */  1393796574908163946345982392040522594123776.0,
 /* pow(2.0, 141.0) */  2787593149816327892691964784081045188247552.0,
 /* pow(2.0, 142.0) */  5575186299632655785383929568162090376495104.0,
 /* pow(2.0, 143.0) */  11150372599265311570767859136324180752990208.0,
 /* pow(2.0, 144.0) */  22300745198530623141535718272648361505980416.0,
 /* pow(2.0, 145.0) */  44601490397061246283071436545296723011960832.0,
 /* pow(2.0, 146.0) */  89202980794122492566142873090593446023921664.0,
 /* pow(2.0, 147.0) */  178405961588244985132285746181186892047843328.0,
 /* pow(2.0, 148.0) */  356811923176489970264571492362373784095686656.0,
 /* pow(2.0, 149.0) */  713623846352979940529142984724747568191373312.0,
 /* pow(2.0, 150.0) */  1427247692705959881058285969449495136382746624.0,
 /* pow(2.0, 151.0) */  2854495385411919762116571938898990272765493248.0,
 /* pow(2.0, 152.0) */  5708990770823839524233143877797980545530986496.0,
 /* pow(2.0, 153.0) */  11417981541647679048466287755595961091061972992.0,
 /* pow(2.0, 154.0) */  22835963083295358096932575511191922182123945984.0,
 /* pow(2.0, 155.0) */  45671926166590716193865151022383844364247891968.0,
 /* pow(2.0, 156.0) */  91343852333181432387730302044767688728495783936.0,
 /* pow(2.0, 157.0) */  182687704666362864775460604089535377456991567872.0,
};


Uwe Schulzweida's avatar
Uwe Schulzweida committed
531
const double const _pow16tab[71] = {
Uwe Schulzweida's avatar
Uwe Schulzweida committed
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
 /* pow(16.0,  0.0) */  1.0,
 /* pow(16.0,  1.0) */  16.0,
 /* pow(16.0,  2.0) */  256.0,
 /* pow(16.0,  3.0) */  4096.0,
 /* pow(16.0,  4.0) */  65536.0,
 /* pow(16.0,  5.0) */  1048576.0,
 /* pow(16.0,  6.0) */  16777216.0,
 /* pow(16.0,  7.0) */  268435456.0,
 /* pow(16.0,  8.0) */  4294967296.0,
 /* pow(16.0,  9.0) */  68719476736.0,
 /* pow(16.0, 10.0) */  1099511627776.0,
 /* pow(16.0, 11.0) */  17592186044416.0,
 /* pow(16.0, 12.0) */  281474976710656.0,
 /* pow(16.0, 13.0) */  4503599627370496.0,
 /* pow(16.0, 14.0) */  72057594037927936.0,
 /* pow(16.0, 15.0) */  1152921504606846976.0,
 /* pow(16.0, 16.0) */  18446744073709551616.0,
 /* pow(16.0, 17.0) */  295147905179352825856.0,
 /* pow(16.0, 18.0) */  4722366482869645213696.0,
 /* pow(16.0, 19.0) */  75557863725914323419136.0,
 /* pow(16.0, 20.0) */  1208925819614629174706176.0,
 /* pow(16.0, 21.0) */  19342813113834066795298816.0,
 /* pow(16.0, 22.0) */  309485009821345068724781056.0,
 /* pow(16.0, 23.0) */  4951760157141521099596496896.0,
 /* pow(16.0, 24.0) */  79228162514264337593543950336.0,
 /* pow(16.0, 25.0) */  1267650600228229401496703205376.0,
 /* pow(16.0, 26.0) */  20282409603651670423947251286016.0,
 /* pow(16.0, 27.0) */  324518553658426726783156020576256.0,
 /* pow(16.0, 28.0) */  5192296858534827628530496329220096.0,
 /* pow(16.0, 29.0) */  83076749736557242056487941267521536.0,
 /* pow(16.0, 30.0) */  1329227995784915872903807060280344576.0,
 /* pow(16.0, 31.0) */  21267647932558653966460912964485513216.0,
 /* pow(16.0, 32.0) */  340282366920938463463374607431768211456.0,
 /* pow(16.0, 33.0) */  5444517870735015415413993718908291383296.0,
 /* pow(16.0, 34.0) */  87112285931760246646623899502532662132736.0,
 /* pow(16.0, 35.0) */  1393796574908163946345982392040522594123776.0,
 /* pow(16.0, 36.0) */  22300745198530623141535718272648361505980416.0,
 /* pow(16.0, 37.0) */  356811923176489970264571492362373784095686656.0,
 /* pow(16.0, 38.0) */  5708990770823839524233143877797980545530986496.0,
 /* pow(16.0, 39.0) */  91343852333181432387730302044767688728495783936.0,
 /* pow(16.0, 40.0) */  1461501637330902918203684832716283019655932542976.0,
 /* pow(16.0, 41.0) */  23384026197294446691258957323460528314494920687616.0,
 /* pow(16.0, 42.0) */  374144419156711147060143317175368453031918731001856.0,
 /* pow(16.0, 43.0) */  5986310706507378352962293074805895248510699696029696.0,
 /* pow(16.0, 44.0) */  95780971304118053647396689196894323976171195136475136.0,
 /* pow(16.0, 45.0) */  1532495540865888858358347027150309183618739122183602176.0,
 /* pow(16.0, 46.0) */  24519928653854221733733552434404946937899825954937634816.0,
 /* pow(16.0, 47.0) */  392318858461667547739736838950479151006397215279002157056.0,
 /* pow(16.0, 48.0) */  6277101735386680763835789423207666416102355444464034512896.0,
 /* pow(16.0, 49.0) */  100433627766186892221372630771322662657637687111424552206336.0,
 /* pow(16.0, 50.0) */  1606938044258990275541962092341162602522202993782792835301376.0,
 /* pow(16.0, 51.0) */  25711008708143844408671393477458601640355247900524685364822016.0,
 /* pow(16.0, 52.0) */  411376139330301510538742295639337626245683966408394965837152256.0,
 /* pow(16.0, 53.0) */  6582018229284824168619876730229402019930943462534319453394436096.0,
 /* pow(16.0, 54.0) */  105312291668557186697918027683670432318895095400549111254310977536.0,
 /* pow(16.0, 55.0) */  1684996666696914987166688442938726917102321526408785780068975640576.0,
 /* pow(16.0, 56.0) */  26959946667150639794667015087019630673637144422540572481103610249216.0,
 /* pow(16.0, 57.0) */  431359146674410236714672241392314090778194310760649159697657763987456.0,
 /* pow(16.0, 58.0) */  6901746346790563787434755862277025452451108972170386555162524223799296.0,
 /* pow(16.0, 59.0) */  110427941548649020598956093796432407239217743554726184882600387580788736.0,
 /* pow(16.0, 60.0) */  1766847064778384329583297500742918515827483896875618958121606201292619776.0,
 /* pow(16.0, 61.0) */  28269553036454149273332760011886696253239742350009903329945699220681916416.0,
 /* pow(16.0, 62.0) */  452312848583266388373324160190187140051835877600158453279131187530910662656.0,
 /* pow(16.0, 63.0) */  7237005577332262213973186563042994240829374041602535252466099000494570602496.0,
 /* pow(16.0, 64.0) */  115792089237316195423570985008687907853269984665640564039457584007913129639936.0,
 /* pow(16.0, 65.0) */  1852673427797059126777135760139006525652319754650249024631321344126610074238976.0,
 /* pow(16.0, 66.0) */  29642774844752946028434172162224104410437116074403984394101141506025761187823616.0,
 /* pow(16.0, 67.0) */  474284397516047136454946754595585670566993857190463750305618264096412179005177856.0,
 /* pow(16.0, 68.0) */  7588550360256754183279148073529370729071901715047420004889892225542594864082845696.0,
 /* pow(16.0, 69.0) */  121416805764108066932466369176469931665150427440758720078238275608681517825325531136.0,
 /* pow(16.0, 70.0) */  1942668892225729070919461906823518906642406839052139521251812409738904285205208498176.0,
};

static int _pow2tab_size = sizeof(_pow2tab)/sizeof(double);

void gen_pow2tab(void)
{
  int jloop;

  for ( jloop = 0; jloop < 158; jloop++ )
    printf(" /* pow(2.0, %2d.0) */  %.1f,\n", jloop,  pow(2.0, (double) jloop));
}


void gen_pow16tab(void)
{
  double pval;
  int iexp;

  for ( iexp = 0; iexp < 71; iexp++ )
    {
      pval = pow(16.0, (double)(iexp));
      printf(" /* pow(16.0, %2d.0) */  %.1f,\n", iexp, pval);
    }
}


double intpow2(int x)
{
  if ( x < _pow2tab_size )
    return (_pow2tab[x]);
  else
    return (pow(2.0, (double) x));
}
Uwe Schulzweida's avatar
Uwe Schulzweida committed
636
//#undef _GET_X86_COUNTER
Uwe Schulzweida's avatar
Uwe Schulzweida committed
637
//#undef _GET_IBM_COUNTER
Uwe Schulzweida's avatar
Uwe Schulzweida committed
638
//#undef _GET_MACH_COUNTER
Uwe Schulzweida's avatar
Uwe Schulzweida committed
639
//#undef _ARCH_PWR6
Uwe Schulzweida's avatar
Uwe Schulzweida committed
640

Uwe Schulzweida's avatar
Uwe Schulzweida committed
641
642
#if   defined(__GNUC__) && (__GNUC__ >= 4)
#elif defined(__ICC)    && (__ICC >= 1100)
Uwe Schulzweida's avatar
Uwe Schulzweida committed
643
#elif defined(__clang__)
Uwe Schulzweida's avatar
Uwe Schulzweida committed
644
645
646
647
#else
#define DISABLE_SIMD
#endif

Uwe Schulzweida's avatar
Uwe Schulzweida committed
648
#if defined _GET_IBM_COUNTER
Uwe Schulzweida's avatar
Uwe Schulzweida committed
649
#include <libhpc.h>
Uwe Schulzweida's avatar
Uwe Schulzweida committed
650
#elif defined _GET_X86_COUNTER
Uwe Schulzweida's avatar
Uwe Schulzweida committed
651
#include <x86intrin.h>
Uwe Schulzweida's avatar
Uwe Schulzweida committed
652
#elif defined _GET_MACH_COUNTER
Uwe Schulzweida's avatar
Uwe Schulzweida committed
653
#include <mach/mach_time.h>
Uwe Schulzweida's avatar
Uwe Schulzweida committed
654
#endif
Uwe Schulzweida's avatar
Uwe Schulzweida committed
655

Uwe Schulzweida's avatar
Uwe Schulzweida committed
656
//#define DISABLE_SIMD
Uwe Schulzweida's avatar
Uwe Schulzweida committed
657

Uwe Schulzweida's avatar
Uwe Schulzweida committed
658
659
660
#ifdef DISABLE_SIMD
#ifndef ENABLE_AVX
#undef __AVX__
Uwe Schulzweida's avatar
Uwe Schulzweida committed
661
#endif
Uwe Schulzweida's avatar
Uwe Schulzweida committed
662
663
#ifndef ENABLE_SSE2
#undef __SSE2__
Uwe Schulzweida's avatar
Uwe Schulzweida committed
664
665
#endif
#endif
Uwe Schulzweida's avatar
Uwe Schulzweida committed
666

Uwe Schulzweida's avatar
Uwe Schulzweida committed
667
#if defined __AVX__
Uwe Schulzweida's avatar
Uwe Schulzweida committed
668
669
670
671
#include <float.h>
#include <stdint.h>
#include <inttypes.h>
#include <immintrin.h>
Uwe Schulzweida's avatar
Uwe Schulzweida committed
672
#elif defined __SSE2__
Uwe Schulzweida's avatar
Uwe Schulzweida committed
673
674
675
676
#include <float.h>
#include <stdint.h>
#include <inttypes.h>
#include <emmintrin.h>
Uwe Schulzweida's avatar
Uwe Schulzweida committed
677
678
679
680
#endif

#if defined __AVX__

Uwe Schulzweida's avatar
Uwe Schulzweida committed
681
static
Uwe Schulzweida's avatar
Uwe Schulzweida committed
682
void avx_minmax_val(const double *restrict buf, size_t nframes, double *min, double *max)
Uwe Schulzweida's avatar
Uwe Schulzweida committed
683
{
Uwe Schulzweida's avatar
Uwe Schulzweida committed
684
  double fmin[4], fmax[4];
Uwe Schulzweida's avatar
Uwe Schulzweida committed
685
  __m256d current_max, current_min, work;
Uwe Schulzweida's avatar
Uwe Schulzweida committed
686

Uwe Schulzweida's avatar
Uwe Schulzweida committed
687
  // load max and min values into all four slots of the YMM registers
Uwe Schulzweida's avatar
Uwe Schulzweida committed
688
689
  current_min = _mm256_set1_pd(*min);
  current_max = _mm256_set1_pd(*max);
Uwe Schulzweida's avatar
Uwe Schulzweida committed
690

Uwe Schulzweida's avatar
Uwe Schulzweida committed
691
692
  // Work input until "buf" reaches 32 byte alignment
  while ( ((unsigned long)buf) % 32 != 0 && nframes > 0) {
Uwe Schulzweida's avatar
Uwe Schulzweida committed
693

Uwe Schulzweida's avatar
Uwe Schulzweida committed
694
695
696
697
698
699
700
    // Load the next double into the work buffer
    work = _mm256_set1_pd(*buf);
    current_min = _mm256_min_pd(current_min, work);
    current_max = _mm256_max_pd(current_max, work);
    buf++;
    nframes--;
  }
Uwe Schulzweida's avatar
Uwe Schulzweida committed
701

Uwe Schulzweida's avatar
Uwe Schulzweida committed
702
  while (nframes >= 16) {
Uwe Schulzweida's avatar
Uwe Schulzweida committed
703

Uwe Schulzweida's avatar
Uwe Schulzweida committed
704
705
706
    (void) _mm_prefetch(buf+8, _MM_HINT_NTA);

    work = _mm256_load_pd(buf);
Uwe Schulzweida's avatar
Uwe Schulzweida committed
707
708
709
    current_min = _mm256_min_pd(current_min, work);
    current_max = _mm256_max_pd(current_max, work);
    buf += 4;
Uwe Schulzweida's avatar
Uwe Schulzweida committed
710
711

    work = _mm256_load_pd(buf);
Uwe Schulzweida's avatar
Uwe Schulzweida committed
712
713
714
    current_min = _mm256_min_pd(current_min, work);
    current_max = _mm256_max_pd(current_max, work);
    buf += 4;
Uwe Schulzweida's avatar
Uwe Schulzweida committed
715
716
717
718

    (void) _mm_prefetch(buf+8, _MM_HINT_NTA);

    work = _mm256_load_pd(buf);
Uwe Schulzweida's avatar
Uwe Schulzweida committed
719
720
721
    current_min = _mm256_min_pd(current_min, work);
    current_max = _mm256_max_pd(current_max, work);
    buf += 4;
Uwe Schulzweida's avatar
Uwe Schulzweida committed
722
723

    work = _mm256_load_pd(buf);
Uwe Schulzweida's avatar
Uwe Schulzweida committed
724
725
726
727
728
    current_min = _mm256_min_pd(current_min, work);
    current_max = _mm256_max_pd(current_max, work);
    buf += 4;
    nframes -= 16;
  }
Uwe Schulzweida's avatar
Uwe Schulzweida committed
729

Uwe Schulzweida's avatar
Uwe Schulzweida committed
730
731
732
733
734
735
736
737
  // work through aligned buffers
  while (nframes >= 4) {
    work = _mm256_load_pd(buf);
    current_min = _mm256_min_pd(current_min, work);
    current_max = _mm256_max_pd(current_max, work);
    buf += 4;
    nframes -= 4;
  }
Uwe Schulzweida's avatar
Uwe Schulzweida committed
738

Uwe Schulzweida's avatar
Uwe Schulzweida committed
739
740
741
742
743
744
745
746
  // work through the remainung values
  while ( nframes > 0) {
    work = _mm256_set1_pd(*buf);
    current_min = _mm256_min_pd(current_min, work);
    current_max = _mm256_max_pd(current_max, work);
    buf++;
    nframes--;
  }
Uwe Schulzweida's avatar
Uwe Schulzweida committed
747

Uwe Schulzweida's avatar
Uwe Schulzweida committed
748
  // find min & max value through shuffle tricks
Uwe Schulzweida's avatar
Uwe Schulzweida committed
749

Uwe Schulzweida's avatar
Uwe Schulzweida committed
750
  work = current_min;
Uwe Schulzweida's avatar
Uwe Schulzweida committed
751
  work = _mm256_shuffle_pd(work, work, 5);
Uwe Schulzweida's avatar
Uwe Schulzweida committed
752
753
  work = _mm256_min_pd (work, current_min);
  current_min = work;
Uwe Schulzweida's avatar
Uwe Schulzweida committed
754
  work = _mm256_permute2f128_pd(work, work, 1);
Uwe Schulzweida's avatar
Uwe Schulzweida committed
755
  work = _mm256_min_pd (work, current_min);
Uwe Schulzweida's avatar
Uwe Schulzweida committed
756
757
  _mm256_storeu_pd(fmin, work);

Uwe Schulzweida's avatar
Uwe Schulzweida committed
758
  work = current_max;
Uwe Schulzweida's avatar
Uwe Schulzweida committed
759
760
  work = current_max;
  work = _mm256_shuffle_pd(work, work, 5);
Uwe Schulzweida's avatar
Uwe Schulzweida committed
761
762
  work = _mm256_max_pd (work, current_max);
  current_max = work;
Uwe Schulzweida's avatar
Uwe Schulzweida committed
763
  work = _mm256_permute2f128_pd(work, work, 1);
Uwe Schulzweida's avatar
Uwe Schulzweida committed
764
  work = _mm256_max_pd (work, current_max);
Uwe Schulzweida's avatar
Uwe Schulzweida committed
765
766
767
768
  _mm256_storeu_pd(fmax, work);

  *min = fmin[0];
  *max = fmax[0];
Uwe Schulzweida's avatar
Uwe Schulzweida committed
769

Uwe Schulzweida's avatar
Uwe Schulzweida committed
770
771
  return;
}
Uwe Schulzweida's avatar
Uwe Schulzweida committed
772

Uwe Schulzweida's avatar
Uwe Schulzweida committed
773
#elif defined __SSE2__
Uwe Schulzweida's avatar
Uwe Schulzweida committed
774

Uwe Schulzweida's avatar
Uwe Schulzweida committed
775
static
Uwe Schulzweida's avatar
Uwe Schulzweida committed
776
void sse2_minmax_val(const double *restrict buf, size_t nframes, double *min, double *max)
Uwe Schulzweida's avatar
Uwe Schulzweida committed
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
{
  __m128d current_max, current_min, work;
  
  // load starting max and min values into all slots of the XMM registers
  current_min = _mm_set1_pd(*min);
  current_max = _mm_set1_pd(*max);
  
  // work on input until buf reaches 16 byte alignment
  while ( ((unsigned long)buf) % 16 != 0 && nframes > 0) {
    
    // load one double and replicate
    work = _mm_set1_pd(*buf);    
    current_min = _mm_min_pd(current_min, work);
    current_max = _mm_max_pd(current_max, work);    
    buf++;
    nframes--;
  }
  
  while (nframes >= 8) {
    // use 64 byte prefetch for double octetts
Uwe Schulzweida's avatar
Uwe Schulzweida committed
797
    // __builtin_prefetch(buf+64,0,0); // for GCC 4.3.2 +
Uwe Schulzweida's avatar
Uwe Schulzweida committed
798

Uwe Schulzweida's avatar
Uwe Schulzweida committed
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
    work = _mm_load_pd(buf);
    current_min = _mm_min_pd(current_min, work);
    current_max = _mm_max_pd(current_max, work);
    buf += 2;
    work = _mm_load_pd(buf);
    current_min = _mm_min_pd(current_min, work);
    current_max = _mm_max_pd(current_max, work);
    buf += 2;
    work = _mm_load_pd(buf);
    current_min = _mm_min_pd(current_min, work);
    current_max = _mm_max_pd(current_max, work);
    buf += 2;
    work = _mm_load_pd(buf);
    current_min = _mm_min_pd(current_min, work);
    current_max = _mm_max_pd(current_max, work);
    buf += 2;
    nframes -= 8;
  }
Uwe Schulzweida's avatar
Uwe Schulzweida committed
817

Uwe Schulzweida's avatar
Uwe Schulzweida committed
818
819
820
821
822
823
824
825
  // work through smaller chunks of aligned buffers without prefetching
  while (nframes >= 2) {
    work = _mm_load_pd(buf);
    current_min = _mm_min_pd(current_min, work);
    current_max = _mm_max_pd(current_max, work);
    buf += 2;
    nframes -= 2;
  }
Uwe Schulzweida's avatar
Uwe Schulzweida committed
826

Uwe Schulzweida's avatar
Uwe Schulzweida committed
827
828
829
830
831
832
833
834
835
  // work through the remaining value
  while ( nframes > 0) {
    // load the last double and replicate
    work = _mm_set1_pd(*buf);
    current_min = _mm_min_pd(current_min, work);
    current_max = _mm_max_pd(current_max, work);
    buf++;
    nframes--;
  }
Uwe Schulzweida's avatar
Uwe Schulzweida committed
836

Uwe Schulzweida's avatar
Uwe Schulzweida committed
837
838
839
840
841
842
843
844
845
  // find final min and max value through shuffle tricks
  work = current_min;
  work = _mm_shuffle_pd(work, work, _MM_SHUFFLE2(0, 1));
  work = _mm_min_pd (work, current_min);
  _mm_store_sd(min, work);
  work = current_max;
  work = _mm_shuffle_pd(work, work, _MM_SHUFFLE2(0, 1));
  work = _mm_max_pd (work, current_max);
  _mm_store_sd(max, work);
Uwe Schulzweida's avatar
Uwe Schulzweida committed
846

Uwe Schulzweida's avatar
Uwe Schulzweida committed
847
848
  return;
}
Uwe Schulzweida's avatar
Uwe Schulzweida committed
849

Uwe Schulzweida's avatar
Uwe Schulzweida committed
850
#endif
Uwe Schulzweida's avatar
Uwe Schulzweida committed
851

Uwe Schulzweida's avatar
Uwe Schulzweida committed
852
static
Uwe Schulzweida's avatar
Uwe Schulzweida committed
853
void minmax_val(const double *restrict data, long idatasize, double *fmin, double *fmax)
Uwe Schulzweida's avatar
Uwe Schulzweida committed
854
{
Uwe Schulzweida's avatar
Uwe Schulzweida committed
855
#if defined _GET_X86_COUNTER || defined _GET_MACH_COUNTER 
Uwe Schulzweida's avatar
Uwe Schulzweida committed
856
857
  uint64_t start_minmax, end_minmax;
#endif
Uwe Schulzweida's avatar
Uwe Schulzweida committed
858
  size_t datasize = idatasize;
Uwe Schulzweida's avatar
Uwe Schulzweida committed
859

Uwe Schulzweida's avatar
Uwe Schulzweida committed
860
  if ( idatasize < 1 ) return;
Uwe Schulzweida's avatar
Uwe Schulzweida committed
861

Uwe Schulzweida's avatar
Uwe Schulzweida committed
862
863
864
#ifdef _GET_X86_COUNTER 
  start_minmax = _rdtsc();
#endif
Uwe Schulzweida's avatar
Uwe Schulzweida committed
865
866
867
#ifdef _GET_MACH_COUNTER 
  start_minmax = mach_absolute_time();
#endif
Uwe Schulzweida's avatar
Uwe Schulzweida committed
868

Uwe Schulzweida's avatar
Uwe Schulzweida committed
869
#if defined __AVX__
Uwe Schulzweida's avatar
Uwe Schulzweida committed
870

Uwe Schulzweida's avatar
Uwe Schulzweida committed
871
  avx_minmax_val(data, datasize, fmin, fmax);
Uwe Schulzweida's avatar
Uwe Schulzweida committed
872

Uwe Schulzweida's avatar
Uwe Schulzweida committed
873
#elif defined __SSE2__
Uwe Schulzweida's avatar
Uwe Schulzweida committed
874

Uwe Schulzweida's avatar
Uwe Schulzweida committed
875
  sse2_minmax_val(data, datasize, fmin, fmax);
Uwe Schulzweida's avatar
Uwe Schulzweida committed
876

Uwe Schulzweida's avatar
Uwe Schulzweida committed
877
#else
Uwe Schulzweida's avatar
Uwe Schulzweida committed
878

Uwe Schulzweida's avatar
Uwe Schulzweida committed
879
880
#ifdef _ARCH_PWR6
#define __UNROLL_DEPTH_1 6
Uwe Schulzweida's avatar
Uwe Schulzweida committed
881

Uwe Schulzweida's avatar
Uwe Schulzweida committed
882
  // to allow pipelining we have to unroll 
Uwe Schulzweida's avatar
Uwe Schulzweida committed
883

Uwe Schulzweida's avatar
Uwe Schulzweida committed
884
885
886
887
#ifdef _GET_IBM_COUNTER 
  hpmStart(1, "minmax fsel");
#endif
  {
Uwe Schulzweida's avatar
Uwe Schulzweida committed
888
889
890
    size_t i, j;
    size_t residual =  datasize % __UNROLL_DEPTH_1;
    size_t ofs = datasize - residual;
Uwe Schulzweida's avatar
Uwe Schulzweida committed
891
892
    double register dmin[__UNROLL_DEPTH_1];
    double register dmax[__UNROLL_DEPTH_1];
Uwe Schulzweida's avatar
Uwe Schulzweida committed
893

Uwe Schulzweida's avatar
Uwe Schulzweida committed
894
895
896
897
898
899
900
901
902
903
904
905
906
907
    for ( j = 0; j < __UNROLL_DEPTH_1; j++) 
      {
	dmin[j] = data[0];
	dmax[j] = data[0];
      }
    
    for ( i = 0; i < datasize - residual; i += __UNROLL_DEPTH_1 ) 
      {
	for (j = 0; j < __UNROLL_DEPTH_1; j++) 
	  {
	    dmin[j] = __fsel(dmin[j] - data[i+j], data[i+j], dmin[j]);
	    dmax[j] = __fsel(data[i+j] - dmax[j], data[i+j], dmax[j]);
	  }
      }
Uwe Schulzweida's avatar
Uwe Schulzweida committed
908

Uwe Schulzweida's avatar
Uwe Schulzweida committed
909
910
911
912
913
    for (j = 0; j < residual; j++) 
      {
	dmin[j] = __fsel(dmin[j] - data[ofs+j], data[ofs+j], dmin[j]);
	dmax[j] = __fsel(data[ofs+j] - dmax[j], data[ofs+j], dmax[j]);
      }
Uwe Schulzweida's avatar
Uwe Schulzweida committed
914

Uwe Schulzweida's avatar
Uwe Schulzweida committed
915
916
917
918
919
920
921
922
923
    for ( j = 0; j < __UNROLL_DEPTH_1; j++) 
      {
	*fmin = __fsel(*fmin - dmin[j], dmin[j], *fmin);
	*fmax = __fsel(dmax[j] - *fmax, dmax[j], *fmax);
      }
  }
#ifdef _GET_IBM_COUNTER 
  hpmStop(1);
#endif
Uwe Schulzweida's avatar
Uwe Schulzweida committed
924

Uwe Schulzweida's avatar
Uwe Schulzweida committed
925
#undef __UNROLL_DEPTH_1
Uwe Schulzweida's avatar
Uwe Schulzweida committed
926
927

#else // original loop
Uwe Schulzweida's avatar
Uwe Schulzweida committed
928

Uwe Schulzweida's avatar
Uwe Schulzweida committed
929
930
931
932
#ifdef _GET_IBM_COUNTER 
  hpmStart(1, "minmax base");
#endif
  {
Uwe Schulzweida's avatar
Uwe Schulzweida committed
933
    size_t i;
Uwe Schulzweida's avatar
Uwe Schulzweida committed
934

Uwe Schulzweida's avatar
Uwe Schulzweida committed
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
#if   defined (CRAY)
#pragma _CRI ivdep
#elif defined (SX)
#pragma vdir nodep
#elif defined (__uxp__)
#pragma loop novrec
#endif
    for ( i = 0; i < datasize; ++i )
      {
	if ( *fmin > data[i] ) *fmin = data[i];
	if ( *fmax < data[i] ) *fmax = data[i];
	/*
	 *fmin = *fmin < data[i] ? *fmin : data[i];
	 *fmax = *fmax > data[i] ? *fmax : data[i];
	 */
      }
  }
#ifdef _GET_IBM_COUNTER 
  hpmStop(1);
#endif
Uwe Schulzweida's avatar
Uwe Schulzweida committed
955

Uwe Schulzweida's avatar
Uwe Schulzweida committed
956
#endif // _ARCH_PWR6 && original loop
Uwe Schulzweida's avatar
Uwe Schulzweida committed
957
#endif // SIMD
Uwe Schulzweida's avatar
Uwe Schulzweida committed
958

Uwe Schulzweida's avatar
Uwe Schulzweida committed
959
#if defined _GET_X86_COUNTER || defined _GET_MACH_COUNTER
Uwe Schulzweida's avatar
Uwe Schulzweida committed
960
961
#ifdef _GET_X86_COUNTER 
  end_minmax = _rdtsc();
Uwe Schulzweida's avatar
Uwe Schulzweida committed
962
963
964
965
966
967
#endif
#ifdef _GET_MACH_COUNTER 
  end_minmax = mach_absolute_time();
#endif
#if defined __AVX__
  printf("AVX minmax cycles:: %" PRIu64 "\n", 
Uwe Schulzweida's avatar
Uwe Schulzweida committed
968
	 end_minmax-start_minmax);
Uwe Schulzweida's avatar
Uwe Schulzweida committed
969
  fprintf (stderr, "AVX min: %lf max: %lf\n", *fmin, *fmax);
Uwe Schulzweida's avatar
Uwe Schulzweida committed
970
971
#elif defined __SSE2__
  printf("SSE2 minmax cycles:: %" PRIu64 "\n", 
Uwe Schulzweida's avatar
Uwe Schulzweida committed
972
	 end_minmax-start_minmax);
Uwe Schulzweida's avatar
Uwe Schulzweida committed
973
  fprintf (stderr, "SSE2 min: %lf max: %lf\n", *fmin, *fmax);
Uwe Schulzweida's avatar
Uwe Schulzweida committed
974
#else
Uwe Schulzweida's avatar
Uwe Schulzweida committed
975
  printf("loop minmax cycles:: %" PRIu64 "\n", 
Uwe Schulzweida's avatar
Uwe Schulzweida committed
976
	 end_minmax-start_minmax);
Uwe Schulzweida's avatar
Uwe Schulzweida committed
977
  fprintf (stderr, "loop min: %lf max: %lf\n", *fmin, *fmax);
Uwe Schulzweida's avatar
Uwe Schulzweida committed
978
979
#endif
#endif
Uwe Schulzweida's avatar
Uwe Schulzweida committed
980

Uwe Schulzweida's avatar
Uwe Schulzweida committed
981
982
  return;
}
Uwe Schulzweida's avatar
Uwe Schulzweida committed
983
984
//#undef _GET_X86_COUNTER
//#undef _GET_MACH_COUNTER
Uwe Schulzweida's avatar
Uwe Schulzweida committed
985
//#undef _GET_IBM_COUNTER
Uwe Schulzweida's avatar
Uwe Schulzweida committed
986
987
//#undef _ARCH_PWR6

Uwe Schulzweida's avatar
Uwe Schulzweida committed
988
#include <stdint.h>
Uwe Schulzweida's avatar
Uwe Schulzweida committed
989

Uwe Schulzweida's avatar
Uwe Schulzweida committed
990
991
#if   defined(__GNUC__) && (__GNUC__ >= 4)
#elif defined(__ICC)    && (__ICC >= 1100)
Uwe Schulzweida's avatar
Uwe Schulzweida committed
992
#elif defined(__clang__)
Uwe Schulzweida's avatar
Uwe Schulzweida committed
993
994
995
996
#else
#define DISABLE_SIMD
#endif

Uwe Schulzweida's avatar
Uwe Schulzweida committed
997
#if defined _GET_IBM_COUNTER
Uwe Schulzweida's avatar
Uwe Schulzweida committed
998
#include <libhpc.h>
Uwe Schulzweida's avatar
Uwe Schulzweida committed
999
#elif defined _GET_X86_COUNTER
Uwe Schulzweida's avatar
Uwe Schulzweida committed
1000
#include <x86intrin.h>