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Add option GPU_PHYSICS #322

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Add option GPU_PHYSICS #322

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86a4b8e
Find OpenACC
pchakraborty May 12, 2023
1e1e31e
Merge pull request #316 from GEOS-ESM/develop
mathomp4 May 18, 2023
dc3399a
Merge remote-tracking branch 'origin/based-on-v3.28.0' into based-on-…
pchakraborty May 30, 2023
850a510
Added option GPU_PHYSICS with default value OFF
pchakraborty Jun 24, 2023
306de40
Merge branch 'develop' into merge/pchakrab/gpu-physics-openacc
pchakraborty Jun 26, 2023
8f2dbf4
Added a set of variables for OpenACC compilation
pchakraborty Jun 30, 2023
718762f
Added -foffload
pchakraborty Jun 30, 2023
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4 changes: 4 additions & 0 deletions CHANGELOG.md
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Expand Up @@ -13,6 +13,10 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0

### Added

- Added option `GPU_PHYSICS` which defaults to `OFF`. When `ON`, available
OpenACC ports of Phsyics routines will be built instead of their original
versions.

### Changed

## [3.30.0] - 2023-06-23
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8 changes: 8 additions & 0 deletions compiler/flags/GNU_Fortran.cmake
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Expand Up @@ -110,6 +110,10 @@ set (NO_ALIAS "")

set (NO_RANGE_CHECK "-fno-range-check")

set (OPENACC_COMPILE "-fopenacc")
set (OPENACC_OFFLOAD_TARGETS "-foffload=nvptx-none")
set (OPENACC_OFFLOAD_OPTIONS "-foffload=-lgfortran -lgomp -lm")

cmake_host_system_information(RESULT proc_description QUERY PROCESSOR_DESCRIPTION)

if ( ${CMAKE_HOST_SYSTEM_PROCESSOR} STREQUAL aarch64 )
Expand Down Expand Up @@ -202,6 +206,10 @@ endif ()
#set (GEOS_Fortran_Aggressive_Flags "-O2 -march=native -ffast-math -ftree-vectorize -funroll-loops --param max-unroll-times=4 ${PREFER_AVX128} -mno-fma -mveclibabi=svml")
#set (GEOS_Fortran_Aggressive_FPE_Flags "${DEBINFO} ${TRACEBACK} ${MISMATCH} ${ALLOW_BOZ}")

# OpenACC flags
# -------------
set (GEOS_Fortran_OpenACC_Flags "${OPENACC_COMPILE} ${OPENACC_OFFLOAD_TARGETS}")
set (GEOS_Fortran_OpenACC_Flags_Offload_Libs "${OPENACC_COMPILE} ${OPENACC_OFFLOAD_OPTIONS} ${OPENACC_OFFLOAD_TARGETS}")

# Common variables for every compiler
include(Generic_Fortran)
7 changes: 7 additions & 0 deletions esma.cmake
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Expand Up @@ -24,6 +24,13 @@ option(BUILD_SHARED_LIBS "Build the shared library" OFF)
set (ECBUILD_2_COMPAT_VALUE OFF)
include (ecbuild_system NO_POLICY_SCOPE)

### GPU Physics ###

option(GPU_PHYSICS "Build GPU ports of Physics components" OFF)
if (GPU_PHYSICS)
find_package (OpenACC)
endif ()

### Compiler Support ###

list (APPEND CMAKE_MODULE_PATH "${CMAKE_CURRENT_LIST_DIR}/compiler")
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