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Merge pull request #1226 from akohlmey/cmake-gpu-enhancements 

Enhancements for using CMake with the GPU package, improved compatibility with cmake 3.x versions, improved handling of shared library building.
This commit is contained in:
Axel Kohlmeyer 2018-11-27 16:05:47 -05:00 committed by GitHub
parent 6e8c537564 ebacd5ca6b
commit f254b8e3a3
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
5 changed files with 120 additions and 63 deletions
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145
cmake/CMakeLists.txt
View File

@ -11,6 +11,10 @@ get_filename_component(LAMMPS_LIB_SOURCE_DIR ${CMAKE_CURRENT_SOURCE_DIR}/../lib
get_filename_component(LAMMPS_LIB_BINARY_DIR ${CMAKE_BINARY_DIR}/lib ABSOLUTE)
get_filename_component(LAMMPS_DOC_DIR ${CMAKE_CURRENT_SOURCE_DIR}/../doc ABSOLUTE)
# by default, install into $HOME/.local (not /usr/local), so that no root access (and sudo!!) is needed
if (CMAKE_INSTALL_PREFIX_INITIALIZED_TO_DEFAULT)
set(CMAKE_INSTALL_PREFIX "$ENV{HOME}/.local" CACHE PATH "default install path" FORCE )
endif()
# To avoid conflicts with the conventional Makefile build system, we build everything here
file(GLOB LIB_SOURCES ${LAMMPS_SOURCE_DIR}/[^.]*.cpp)
@ -75,6 +79,7 @@ if(NOT CMAKE_BUILD_TYPE AND NOT CMAKE_CXX_FLAGS)
#release comes with -O3 by default
set(CMAKE_BUILD_TYPE Release CACHE STRING "Choose the type of build, options are: None Debug Release RelWithDebInfo MinSizeRel." FORCE)
endif(NOT CMAKE_BUILD_TYPE AND NOT CMAKE_CXX_FLAGS)
string(TOUPPER "${CMAKE_BUILD_TYPE}" BTYPE)
# check for files auto-generated by make-based buildsystem
# this is fast, so check for it all the time
@ -422,16 +427,30 @@ if(WITH_FFMPEG)
add_definitions(-DLAMMPS_FFMPEG)
endif()
if(BUILD_SHARED_LIBS)
set(CONFIGURE_REQUEST_PIC "--with-pic")
set(CMAKE_REQUEST_PIC "-DCMAKE_POSITION_INDEPENDENT_CODE=${CMAKE_POSITION_INDEPENDENT_CODE}")
set(CUDA_REQUEST_PIC "-Xcompiler ${CMAKE_SHARED_LIBRARY_CXX_FLAGS}")
else()
set(CONFIGURE_REQUEST_PIC)
set(CMAKE_REQUEST_PIC)
set(CUDA_REQUEST_PIC)
endif()
if(PKG_VORONOI)
option(DOWNLOAD_VORO "Download voro++ (instead of using the system's one)" OFF)
option(DOWNLOAD_VORO "Download and compile the Voro++ library instead of using an already installed one" OFF)
if(DOWNLOAD_VORO)
message(STATUS "Voro++ download requested - we will build our own")
include(ExternalProject)
if(BUILD_SHARED_LIBS)
set(VORO_BUILD_OPTIONS "CFLAGS=-fPIC")
set(VORO_BUILD_CFLAGS "${CMAKE_SHARED_LIBRARY_CXX_FLAGS} ${CMAKE_CXX_FLAGS} ${CMAKE_CXX_FLAGS_${BTYPE}}")
else()
set(VORO_BUILD_OPTIONS)
set(VORO_BUILD_CFLAGS "${CMAKE_CXX_FLAGS} ${CMAKE_CXX_FLAGS_${BTYPE}}")
endif()
string(APPEND VORO_BUILD_CFLAGS ${CMAKE_CXX_FLAGS})
set(VORO_BUILD_OPTIONS CXX=${CMAKE_CXX_COMPILER} CFLAGS=${VORO_BUILD_CFLAGS})
ExternalProject_Add(voro_build
URL http://math.lbl.gov/voro++/download/dir/voro++-0.4.6.tar.gz
@ -445,7 +464,7 @@ if(PKG_VORONOI)
else()
find_package(VORO)
if(NOT VORO_FOUND)
message(FATAL_ERROR "VORO not found, help CMake to find it by setting VORO_LIBRARY and VORO_INCLUDE_DIR, or set DOWNLOAD_VORO=ON to download it")
message(FATAL_ERROR "Voro++ library not found. Help CMake to find it by setting VORO_LIBRARY and VORO_INCLUDE_DIR, or set DOWNLOAD_VORO=ON to download it")
endif()
endif()
include_directories(${VORO_INCLUDE_DIRS})
@ -453,26 +472,26 @@ if(PKG_VORONOI)
endif()
if(PKG_LATTE)
option(DOWNLOAD_LATTE "Download latte (instead of using the system's one)" OFF)
option(DOWNLOAD_LATTE "Download the LATTE library instead of using an already installed one" OFF)
if(DOWNLOAD_LATTE)
if (CMAKE_VERSION VERSION_LESS "3.7") # due to SOURCE_SUBDIR
if (CMAKE_VERSION VERSION_LESS "3.7") # due to SOURCE_SUBDIR
message(FATAL_ERROR "For downlading LATTE you need at least cmake-3.7")
endif()
message(STATUS "LATTE not found - we will build our own")
message(STATUS "LATTE download requested - we will build our own")
include(ExternalProject)
ExternalProject_Add(latte_build
URL https://github.com/lanl/LATTE/archive/v1.2.1.tar.gz
URL_MD5 85ac414fdada2d04619c8f936344df14
SOURCE_SUBDIR cmake
CMAKE_ARGS -DCMAKE_INSTALL_PREFIX=<INSTALL_DIR> -DCMAKE_POSITION_INDEPENDENT_CODE=${CMAKE_POSITION_INDEPENDENT_CODE}
)
CMAKE_ARGS -DCMAKE_INSTALL_PREFIX=<INSTALL_DIR> ${CMAKE_REQUEST_PIC}
)
ExternalProject_get_property(latte_build INSTALL_DIR)
set(LATTE_LIBRARIES ${INSTALL_DIR}/${CMAKE_INSTALL_LIBDIR}/liblatte.a)
list(APPEND LAMMPS_DEPS latte_build)
else()
find_package(LATTE)
if(NOT LATTE_FOUND)
message(FATAL_ERROR "LATTE not found, help CMake to find it by setting LATTE_LIBRARY, or set DOWNLOAD_LATTE=ON to download it")
message(FATAL_ERROR "LATTE library not found, help CMake to find it by setting LATTE_LIBRARY, or set DOWNLOAD_LATTE=ON to download it")
endif()
endif()
list(APPEND LAMMPS_LINK_LIBS ${LATTE_LIBRARIES} ${LAPACK_LIBRARIES})
@ -480,24 +499,22 @@ endif()
if(PKG_USER-SCAFACOS)
find_package(GSL REQUIRED)
option(DOWNLOAD_SCAFACOS "Download ScaFaCoS (instead of using the system's one)" OFF)
option(DOWNLOAD_SCAFACOS "Download ScaFaCoS library instead of using an already installed one" OFF)
if(DOWNLOAD_SCAFACOS)
message(STATUS "ScaFaCoS download requested - we will build our own")
include(ExternalProject)
ExternalProject_Add(scafacos_build
URL https://github.com/scafacos/scafacos/releases/download/v1.0.1/scafacos-1.0.1.tar.gz
URL_MD5 bd46d74e3296bd8a444d731bb10c1738
CONFIGURE_COMMAND <SOURCE_DIR>/configure --prefix=<INSTALL_DIR>
--disable-doc
CONFIGURE_COMMAND <SOURCE_DIR>/configure --prefix=<INSTALL_DIR> --disable-doc
--enable-fcs-solvers=fmm,p2nfft,direct,ewald,p3m
--with-internal-fftw
--with-internal-pfft
--with-internal-pnfft
$<$<BOOL:${BUILD_SHARED_LIBS}>:--with-pic>
FC=${CMAKE_MPI_Fortran_COMPILER}
CXX=${CMAKE_MPI_CXX_COMPILER}
--with-internal-fftw --with-internal-pfft
--with-internal-pnfft ${CONFIGURE_REQUEST_PIC}
FC=${CMAKE_MPI_Fortran_COMPILER}
CXX=${CMAKE_MPI_CXX_COMPILER}
CC=${CMAKE_MPI_C_COMPILER}
F77=
)
)
ExternalProject_get_property(scafacos_build INSTALL_DIR)
set(SCAFACOS_BUILD_DIR ${INSTALL_DIR})
set(SCAFACOS_INCLUDE_DIRS ${SCAFACOS_BUILD_DIR}/include)
@ -537,15 +554,15 @@ if(PKG_USER-PLUMED)
validate_option(PLUMED_MODE PLUMED_MODE_VALUES)
string(TOUPPER ${PLUMED_MODE} PLUMED_MODE)
option(DOWNLOAD_PLUMED "Download Plumed (instead of using the system's one)" OFF)
option(DOWNLOAD_PLUMED "Download Plumed package instead of using an already installed one" OFF)
if(DOWNLOAD_PLUMED)
message(STATUS "PLUMED download requested - we will build our own")
include(ExternalProject)
ExternalProject_Add(plumed_build
URL https://github.com/plumed/plumed2/releases/download/v2.4.3/plumed-src-2.4.3.tgz
URL https://github.com/plumed/plumed2/releases/download/v2.4.3/plumed-src-2.4.3.tgz
URL_MD5 b1be7c48971627febc11c61b70767fc5
BUILD_IN_SOURCE 1
CONFIGURE_COMMAND <SOURCE_DIR>/configure --prefix=<INSTALL_DIR>
$<$<BOOL:${BUILD_SHARED_LIBS}>:--with-pic> )
CONFIGURE_COMMAND <SOURCE_DIR>/configure --prefix=<INSTALL_DIR> ${CONFIGURE_REQUEST_PIC})
ExternalProject_get_property(plumed_build INSTALL_DIR)
set(PLUMED_INSTALL_DIR ${INSTALL_DIR})
list(APPEND LAMMPS_DEPS plumed_build)
@ -592,11 +609,12 @@ if(PKG_USER-NETCDF)
endif()
if(PKG_USER-SMD)
option(DOWNLOAD_EIGEN3 "Download Eigen3 (instead of using the system's one)" OFF)
option(DOWNLOAD_EIGEN3 "Download Eigen3 instead of using an already installed one)" OFF)
if(DOWNLOAD_EIGEN3)
message(STATUS "Eigen3 download requested - we will build our own")
include(ExternalProject)
ExternalProject_Add(Eigen3_build
URL http://bitbucket.org/eigen/eigen/get/3.3.4.tar.gz
URL http://bitbucket.org/eigen/eigen/get/3.3.4.tar.gz
URL_MD5 1a47e78efe365a97de0c022d127607c3
CONFIGURE_COMMAND "" BUILD_COMMAND "" INSTALL_COMMAND ""
)
@ -633,8 +651,9 @@ if(PKG_USER-VTK)
endif()
if(PKG_KIM)
option(DOWNLOAD_KIM "Download kim-api (instead of using the system's one)" OFF)
option(DOWNLOAD_KIM "Download KIM-API v1 from OpenKIM instead of using an already installed one)" OFF)
if(DOWNLOAD_KIM)
message(STATUS "KIM-API v1 download requested - we will build our own")
include(ExternalProject)
ExternalProject_Add(kim_build
URL https://github.com/openkim/kim-api/archive/v1.9.5.tar.gz
@ -649,7 +668,7 @@ if(PKG_KIM)
else()
find_package(KIM)
if(NOT KIM_FOUND)
message(FATAL_ERROR "KIM not found, help CMake to find it by setting KIM_LIBRARY and KIM_INCLUDE_DIR, or set DOWNLOAD_KIM=ON to download it")
message(FATAL_ERROR "KIM-API v1 not found, help CMake to find it by setting KIM_LIBRARY and KIM_INCLUDE_DIR, or set DOWNLOAD_KIM=ON to download it")
endif()
endif()
list(APPEND LAMMPS_LINK_LIBS ${KIM_LIBRARIES})
@ -662,12 +681,7 @@ if(PKG_MESSAGE)
${LAMMPS_LIB_SOURCE_DIR}/message/cslib/[^.]*.c
${LAMMPS_LIB_SOURCE_DIR}/message/cslib/[^.]*.cpp)
if(BUILD_SHARED_LIBS)
add_library(cslib SHARED ${cslib_SOURCES})
else()
add_library(cslib STATIC ${cslib_SOURCES})
endif()
add_library(cslib STATIC ${cslib_SOURCES})
if(BUILD_MPI)
target_compile_definitions(cslib PRIVATE -DMPI_YES)
set_target_properties(cslib PROPERTIES OUTPUT_NAME "csmpi")
@ -692,10 +706,10 @@ endif()
if(PKG_MSCG)
find_package(GSL REQUIRED)
option(DOWNLOAD_MSCG "Download latte (instead of using the system's one)" OFF)
option(DOWNLOAD_MSCG "Download MSCG library instead of using an already installed one)" OFF)
if(DOWNLOAD_MSCG)
if (CMAKE_VERSION VERSION_LESS "3.7") # due to SOURCE_SUBDIR
message(FATAL_ERROR "For downlading LATTE you need at least cmake-3.7")
if (CMAKE_VERSION VERSION_LESS "3.7") # due to SOURCE_SUBDIR
message(FATAL_ERROR "For downlading MSCG you need at least cmake-3.7")
endif()
include(ExternalProject)
if(NOT LAPACK_FOUND)
@ -705,7 +719,7 @@ if(PKG_MSCG)
URL https://github.com/uchicago-voth/MSCG-release/archive/1.7.3.1.tar.gz
URL_MD5 8c45e269ee13f60b303edd7823866a91
SOURCE_SUBDIR src/CMake
CMAKE_ARGS -DCMAKE_INSTALL_PREFIX=<INSTALL_DIR> -DCMAKE_POSITION_INDEPENDENT_CODE=${CMAKE_POSITION_INDEPENDENT_CODE} ${EXTRA_MSCG_OPTS}
CMAKE_ARGS -DCMAKE_INSTALL_PREFIX=<INSTALL_DIR> ${CMAKE_REQUEST_PIC} ${EXTRA_MSCG_OPTS}
BUILD_COMMAND make mscg INSTALL_COMMAND ""
)
ExternalProject_get_property(mscg_build BINARY_DIR)
@ -753,7 +767,7 @@ set(MATH_LIBRARIES "m" CACHE STRING "math library")
mark_as_advanced( MATH_LIBRARIES )
include(CheckLibraryExists)
if (CMAKE_VERSION VERSION_LESS "3.4")
enable_language(C) # check_library_exists isn't supported without a c compiler before v3.4
enable_language(C) # check_library_exists isn't supported without a C compiler before v3.4
endif()
# RB: disabled this check because it breaks with KOKKOS CUDA enabled
#foreach(FUNC sin cos)
@ -1026,7 +1040,7 @@ if(PKG_USER-INTEL)
endif()
if(CMAKE_CXX_COMPILER_VERSION VERSION_LESS 16)
message(FATAL_ERROR "USER-INTEL is needed at least 2016 intel compiler, found ${CMAKE_CXX_COMPILER_VERSION}")
message(FATAL_ERROR "USER-INTEL needs at least a 2016 intel compiler, found ${CMAKE_CXX_COMPILER_VERSION}")
endif()
if(NOT BUILD_OMP)
@ -1091,7 +1105,7 @@ if(PKG_USER-INTEL)
endif()
if(PKG_GPU)
if (CMAKE_VERSION VERSION_LESS "3.1")
if (CMAKE_VERSION VERSION_LESS "3.1")
message(FATAL_ERROR "For the GPU package you need at least cmake-3.1")
endif()
set(GPU_SOURCES_DIR ${LAMMPS_SOURCE_DIR}/GPU)
@ -1126,11 +1140,11 @@ if(PKG_GPU)
find_package(CUDA REQUIRED)
find_program(BIN2C bin2c)
if(NOT BIN2C)
message(FATAL_ERROR "Couldn't find bin2c, use -DBIN2C helping cmake to find it.")
message(FATAL_ERROR "Could not find bin2c, use -DBIN2C=/path/to/bin2c to help cmake finding it.")
endif()
option(CUDPP_OPT "Enable CUDPP_OPT" ON)
set(GPU_ARCH "sm_30" CACHE STRING "LAMMPS GPU CUDA SM architecture (e.g. sm_60)")
set(GPU_ARCH "sm_30" CACHE STRING "LAMMPS GPU CUDA SM primary architecture (e.g. sm_60)")
file(GLOB GPU_LIB_CU ${LAMMPS_LIB_SOURCE_DIR}/gpu/[^.]*.cu ${CMAKE_CURRENT_SOURCE_DIR}/gpu/[^.]*.cu)
list(REMOVE_ITEM GPU_LIB_CU ${LAMMPS_LIB_SOURCE_DIR}/gpu/lal_pppm.cu)
@ -1143,11 +1157,39 @@ if(PKG_GPU)
file(GLOB GPU_LIB_CUDPP_CU ${LAMMPS_LIB_SOURCE_DIR}/gpu/cudpp_mini/[^.]*.cu)
endif()
cuda_compile_cubin(GPU_GEN_OBJS ${GPU_LIB_CU} OPTIONS
-DUNIX -O3 -Xptxas -v --use_fast_math -DNV_KERNEL -DUCL_CUDADR -arch=${GPU_ARCH} -D_${GPU_PREC_SETTING})
# build arch/gencode commands for nvcc based on CUDA toolkit version and use choice
# --arch translates directly instead of JIT, so this should be for the preferred or most common architecture
set(GPU_CUDA_GENCODE "-arch=${GPU_ARCH} ")
# Fermi (GPU Arch 2.x) is supported by CUDA 3.2 to CUDA 8.0
if((CUDA_VERSION VERSION_GREATER "3.1") AND (CUDA_VERSION VERSION_LESS "9.0"))
string(APPEND GPU_CUDA_GENCODE "-gencode arch=compute_20,code=[sm_20,compute_20] ")
endif()
# Kepler (GPU Arch 3.x) is supported by CUDA 5 and later
if(CUDA_VERSION VERSION_GREATER "4.9")
string(APPEND GPU_CUDA_GENCODE "-gencode arch=compute_30,code=[sm_30,compute_30] -gencode arch=compute_35,code=[sm_35,compute_35] ")
endif()
# Maxwell (GPU Arch 5.x) is supported by CUDA 6 and later
if(CUDA_VERSION VERSION_GREATER "5.9")
string(APPEND GPU_CUDA_GENCODE "-gencode arch=compute_50,code=[sm_50,compute_50] -gencode arch=compute_52,code=[sm_52,compute_52] ")
endif()
# Pascal (GPU Arch 6.x) is supported by CUDA 8 and later
if(CUDA_VERSION VERSION_GREATER "7.9")
string(APPEND GPU_CUDA_GENCODE "-gencode arch=compute_60,code=[sm_60,compute_60] -gencode arch=compute_61,code=[sm_61,compute_61] ")
endif()
# Volta (GPU Arch 7.0) is supported by CUDA 9 and later
if(CUDA_VERSION VERSION_GREATER "8.9")
string(APPEND GPU_CUDA_GENCODE "-gencode arch=compute_70,code=[sm_70,compute_70] ")
endif()
# Turing (GPU Arch 7.5) is supported by CUDA 10 and later
if(CUDA_VERSION VERSION_GREATER "9.9")
string(APPEND GPU_CUDA_GENCODE "-gencode arch=compute_75,code=[sm_75,compute_75] ")
endif()
cuda_compile(GPU_OBJS ${GPU_LIB_CUDPP_CU} OPTIONS $<$<BOOL:${BUILD_SHARED_LIBS}>:-Xcompiler=-fPIC>
-DUNIX -O3 -Xptxas -v --use_fast_math -DUCL_CUDADR -arch=${GPU_ARCH} -D_${GPU_PREC_SETTING})
cuda_compile_fatbin(GPU_GEN_OBJS ${GPU_LIB_CU} OPTIONS
-DUNIX -O3 --use_fast_math -Wno-deprecated-gpu-targets -DNV_KERNEL -DUCL_CUDADR ${GPU_CUDA_GENCODE} -D_${GPU_PREC_SETTING})
cuda_compile(GPU_OBJS ${GPU_LIB_CUDPP_CU} OPTIONS ${CUDA_REQUEST_PIC}
-DUNIX -O3 --use_fast_math -Wno-deprecated-gpu-targets -DUCL_CUDADR ${GPU_CUDA_GENCODE} -D_${GPU_PREC_SETTING})
foreach(CU_OBJ ${GPU_GEN_OBJS})
get_filename_component(CU_NAME ${CU_OBJ} NAME_WE)
@ -1295,7 +1337,7 @@ if(BUILD_EXE)
add_dependencies(lmp ${LAMMPS_DEPS})
endif()
endif()
set_target_properties(lmp PROPERTIES OUTPUT_NAME ${LAMMPS_BINARY})
install(TARGETS lmp DESTINATION ${CMAKE_INSTALL_BINDIR})
install(FILES ${LAMMPS_DOC_DIR}/lammps.1 DESTINATION ${CMAKE_INSTALL_MANDIR}/man1 RENAME ${LAMMPS_BINARY}.1)
@ -1416,7 +1458,6 @@ foreach(PKG ${DEFAULT_PACKAGES} ${ACCEL_PACKAGES} ${OTHER_PACKAGES})
endif()
endforeach()
string(TOUPPER "${CMAKE_BUILD_TYPE}" BTYPE)
get_directory_property(CPPFLAGS DIRECTORY ${CMAKE_SOURCE_DIR} COMPILE_DEFINITIONS)
include(FeatureSummary)
feature_summary(DESCRIPTION "The following packages have been found:" WHAT PACKAGES_FOUND)
@ -1432,14 +1473,14 @@ message(STATUS "<<< Build configuration >>>
get_property(LANGUAGES GLOBAL PROPERTY ENABLED_LANGUAGES)
list (FIND LANGUAGES "Fortran" _index)
if (${_index} GREATER -1)
message(STATUS "Fortran Compiler ${CMAKE_Fortran_COMPILER}
message(STATUS "Fortran Compiler ${CMAKE_Fortran_COMPILER}
Type ${CMAKE_Fortran_COMPILER_ID}
Version ${CMAKE_Fortran_COMPILER_VERSION}
Fortran Flags ${CMAKE_Fortran_FLAGS} ${CMAKE_Fortran_FLAGS_${BTYPE}}")
endif()
list (FIND LANGUAGES "C" _index)
if (${_index} GREATER -1)
message(STATUS "C Compiler ${CMAKE_C_COMPILER}
message(STATUS "C Compiler ${CMAKE_C_COMPILER}
Type ${CMAKE_C_COMPILER_ID}
Version ${CMAKE_C_COMPILER_VERSION}
C Flags ${CMAKE_C_FLAGS} ${CMAKE_C_FLAGS_${BTYPE}}")
@ -1447,7 +1488,7 @@ endif()
if(CMAKE_EXE_LINKER_FLAGS)
message(STATUS "Linker flags:
Executable ${CMAKE_EXE_LINKER_FLAGS}")
endif()
endif()
if(BUILD_SHARED_LIBS)
message(STATUS "Shared libraries ${CMAKE_SHARED_LINKER_FLAGS}")
else()

1
cmake/README.md
View File

@ -195,6 +195,7 @@ cmake -C ../cmake/presets/std_nolib.cmake -D PKG_GPU=on ../cmake
<td><code>CMAKE_INSTALL_PREFIX</code></td>
<td>Install location where LAMMPS files will be copied to. In the Unix/Linux case with Makefiles this controls what `make install` will do.</td>
<td>
Default setting is <code>$HOME/.local</code>.
</td>
</tr>
<tr>

2
doc/src/Build_cmake.txt
View File

@ -44,7 +44,7 @@ LAMMPS or need to re-compile LAMMPS repeatedly, installation of the
ccache (= Compiler Cache) software may speed up compilation even more.
After compilation, you can optionally copy the LAMMPS executable and
library into your system folders (by default under /usr/local) with:
library into your system folders (by default under $HOME/.local) with:
make install # optional, copy LAMMPS executable & library elsewhere :pre

32
doc/src/Build_extras.txt
View File

@ -87,22 +87,30 @@ which GPU hardware to build for.
# value = double or mixed (default) or single
-D OCL_TUNE=value # hardware choice for GPU_API=opencl
# generic (default) or intel (Intel CPU) or fermi, kepler, cypress (NVIDIA)
-D GPU_ARCH=value # hardware choice for GPU_API=cuda
-D GPU_ARCH=value # primary GPU hardware choice for GPU_API=cuda
# value = sm_XX, see below
# default is Cuda-compiler dependent, but typically sm_20
-D CUDPP_OPT=value # optimization setting for GPU_API=cudea
-D CUDPP_OPT=value # optimization setting for GPU_API=cuda
# enables CUDA Performance Primitives Optimizations
# yes (default) or no :pre
GPU_ARCH settings for different GPU hardware is as follows:
sm_20 for Fermi (C2050/C2070, deprecated as of CUDA 8.0) or GeForce GTX 580 or similar
sm_30 for Kepler (K10)
sm_35 for Kepler (K40) or GeForce GTX Titan or similar
sm_37 for Kepler (dual K80)
sm_50 for Maxwell
sm_60 for Pascal (P100)
sm_70 for Volta :ul
sm_20 or sm_21 for Fermi (supported by CUDA 3.2 until CUDA 7.5)
sm_30 or sm_35 or sm_37 for Kepler (supported since CUDA 5)
sm_50 or sm_52 for Maxwell (supported since CUDA 6)
sm_60 or sm_61 for Pascal (supported since CUDA 8)
sm_70 for Volta (supported since CUDA 9)
sm_75 for Turing (supported since CUDA 10) :ul
A more detailed list can be found, for example,
at "Wikipedia's CUDA article"_https://en.wikipedia.org/wiki/CUDA#GPUs_supported
CMake can detect which version of the CUDA toolkit is used and thus can
include support for [all] major GPU architectures supported by this toolkit.
Thus the GPU_ARCH setting is merely an optimization, to have code for
the preferred GPU architecture directly included rather than having to wait
for the JIT compiler of the CUDA driver to translate it.
[Traditional make]:
@ -137,6 +145,11 @@ CUDA_ARCH = sm_XX, what GPU hardware you have, same as CMake GPU_ARCH above
CUDA_PRECISION = precision (double, mixed, single)
EXTRAMAKE = which Makefile.lammps.* file to copy to Makefile.lammps :ul
The file Makefile.linux_multi is set up to include support for multiple
GPU architectures as supported by the CUDA toolkit in use. This is done
through using the "--gencode " flag, which can be used multiple times and
thus support all GPU architectures supported by your CUDA compiler.
If the library build is successful, 3 files should be created:
lib/gpu/libgpu.a, lib/gpu/nvc_get_devices, and
lib/gpu/Makefile.lammps. The latter has settings that enable LAMMPS
@ -150,6 +163,7 @@ re-build LAMMPS. This is because the compilation of files in the GPU
package uses the library settings from the lib/gpu/Makefile.machine
used to build the GPU library.
:line
KIM package :h4,link(kim)

3
lib/gpu/lal_device.cu
View File

@ -11,7 +11,7 @@
//
// begin :
// email : brownw@ornl.gov
// ***************************************************************************/
// ***************************************************************************
#ifdef NV_KERNEL
#include "lal_preprocessor.h"
@ -42,3 +42,4 @@ __kernel void kernel_info(__global int *info) {
info[13]=THREADS_PER_CHARGE;
info[14]=BLOCK_ELLIPSE;
}