From 0405475748be645cb25de404c4acd96d9ea58ca1 Mon Sep 17 00:00:00 2001
From: Pradipta Samanta <samanta@dkrz.de>
Date: Fri, 21 Feb 2025 17:16:59 +0100
Subject: [PATCH] build kokkos internally along with the package
---
CMakeLists.txt | 16 ++++++++++++++++
src/support/CMakeLists.txt | 10 ++++++----
2 files changed, 22 insertions(+), 4 deletions(-)
diff --git a/CMakeLists.txt b/CMakeLists.txt
index 8fb4acf..ab93b92 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -110,6 +110,22 @@ else()
endif()
endif()
+include(FetchContent)
+# configure kokkos 4.4 repository link
+FetchContent_Declare(kokkos
+ URL https://github.com/kokkos/kokkos/releases/download/4.4.01/kokkos-4.4.01.tar.gz
+ URL_HASH MD5=eafd0d42c9831858aa84fde78576644c
+)
+
+# disable build of C++23 mdspan experimental support for now
+set(Kokkos_ENABLE_IMPL_MDSPAN OFF CACHE BOOL "Experimental mdspan support")
+
+# by default, build the Kokkos serial backend for CPU
+set(Kokkos_ENABLE_SERIAL ON CACHE BOOL "Kokkos Serial backend")
+set(Kokkos_ARCH_NATIVE ON CACHE BOOL "Kokkos native architecture optimisations")
+
+FetchContent_MakeAvailable(kokkos)
+
add_subdirectory(src)
# Allow for 'make test' even if the tests are disabled:
diff --git a/src/support/CMakeLists.txt b/src/support/CMakeLists.txt
index b4ceb37..9f56017 100644
--- a/src/support/CMakeLists.txt
+++ b/src/support/CMakeLists.txt
@@ -57,9 +57,6 @@ if(IM_ENABLE_OPENACC)
endif()
endif()
-message(STATUS "iconmath-support enabling Kokkos")
-find_package(Kokkos REQUIRED)
-
target_include_directories(
iconmath-support
PUBLIC
@@ -77,7 +74,12 @@ target_include_directories(
# https://cmake.org/cmake/help/latest/manual/cmake-generator-expressions.7.html
$<BUILD_INTERFACE:$<$<COMPILE_LANGUAGE:C,CXX>:${CMAKE_CURRENT_BINARY_DIR}>>)
-target_link_libraries(iconmath-support PUBLIC fortran-support::fortran-support Kokkos::kokkos)
+target_link_libraries(iconmath-support
+ PUBLIC
+ fortran-support::fortran-support
+ PRIVATE
+ Kokkos::kokkos
+)
install(TARGETS iconmath-support EXPORT "${PROJECT_NAME}-targets")
--
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