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Summit jsrun GPU mapping updates. Conffigure with --enable-jsrun

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This commit is contained in:
Peter Boyle 2019-10-31 11:46:09 -04:00
parent f31e3278a6
commit ec8e060ec7
4 changed files with 63 additions and 60 deletions
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4
Grid/communicator/SharedMemory.h
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@ -41,9 +41,6 @@ Author: Peter Boyle <paboyle@ph.ed.ac.uk>
#include <sys/shm.h>
#include <sys/mman.h>
#include <zlib.h>
#ifdef HAVE_NUMAIF_H
#include <numaif.h>
#endif
NAMESPACE_BEGIN(Grid);
@ -99,6 +96,7 @@ public:
static void OptimalCommunicator (const Coordinate &processors,Grid_MPI_Comm & optimal_comm); // Turns MPI_COMM_WORLD into right layout for Cartesian
static void OptimalCommunicatorHypercube (const Coordinate &processors,Grid_MPI_Comm & optimal_comm); // Turns MPI_COMM_WORLD into right layout for Cartesian
static void OptimalCommunicatorSharedMemory(const Coordinate &processors,Grid_MPI_Comm & optimal_comm); // Turns MPI_COMM_WORLD into right layout for Cartesian
static void GetShmDims(const Coordinate &WorldDims,Coordinate &ShmDims);
///////////////////////////////////////////////////
// Provide shared memory facilities off comm world
///////////////////////////////////////////////////

67
Grid/communicator/SharedMemoryMPI.cc
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@ -155,6 +155,37 @@ void GlobalSharedMemory::OptimalCommunicator(const Coordinate &processors,Grid_M
if(nscan==3 && HPEhypercube ) OptimalCommunicatorHypercube(processors,optimal_comm);
else OptimalCommunicatorSharedMemory(processors,optimal_comm);
}
static inline int divides(int a,int b)
{
return ( b == ( (b/a)*a ) );
}
void GlobalSharedMemory::GetShmDims(const Coordinate &WorldDims,Coordinate &ShmDims)
{
////////////////////////////////////////////////////////////////
// Assert power of two shm_size.
////////////////////////////////////////////////////////////////
int log2size = Log2Size(WorldShmSize,MAXLOG2RANKSPERNODE);
assert(log2size != -1);
int ndimension = WorldDims.size();
ShmDims=Coordinate(ndimension,1);
std::vector<int> primes({2,3,5});
int dim = 0;
int AutoShmSize = 1;
while(AutoShmSize != WorldShmSize) {
for(int p=0;p<primes.size();p++) {
int prime=primes[p];
if ( divides(prime,WorldDims[dim]/ShmDims[dim]) ) {
AutoShmSize*=prime;
ShmDims[dim]*=prime;
break;
}
}
dim=(dim+1) %ndimension;
}
}
void GlobalSharedMemory::OptimalCommunicatorHypercube(const Coordinate &processors,Grid_MPI_Comm & optimal_comm)
{
////////////////////////////////////////////////////////////////
@ -221,17 +252,13 @@ void GlobalSharedMemory::OptimalCommunicatorHypercube(const Coordinate &processo
// in a maximally symmetrical way
////////////////////////////////////////////////////////////////
int ndimension = processors.size();
std::vector<int> processor_coor(ndimension);
std::vector<int> WorldDims = processors.toVector();
std::vector<int> ShmDims (ndimension,1); std::vector<int> NodeDims (ndimension);
std::vector<int> ShmCoor (ndimension); std::vector<int> NodeCoor (ndimension); std::vector<int> WorldCoor(ndimension);
std::vector<int> HyperCoor(ndimension);
int dim = 0;
for(int l2=0;l2<log2size;l2++){
while ( (WorldDims[dim] / ShmDims[dim]) <= 1 ) dim=(dim+1)%ndimension;
ShmDims[dim]*=2;
dim=(dim+1)%ndimension;
}
Coordinate processor_coor(ndimension);
Coordinate WorldDims = processors;
Coordinate ShmDims (ndimension); Coordinate NodeDims (ndimension);
Coordinate ShmCoor (ndimension); Coordinate NodeCoor (ndimension); Coordinate WorldCoor(ndimension);
Coordinate HyperCoor(ndimension);
GetShmDims(WorldDims,ShmDims);
////////////////////////////////////////////////////////////////
// Establish torus of processes and nodes with sub-blockings
@ -281,11 +308,6 @@ void GlobalSharedMemory::OptimalCommunicatorHypercube(const Coordinate &processo
}
void GlobalSharedMemory::OptimalCommunicatorSharedMemory(const Coordinate &processors,Grid_MPI_Comm & optimal_comm)
{
////////////////////////////////////////////////////////////////
// Assert power of two shm_size.
////////////////////////////////////////////////////////////////
int log2size = Log2Size(WorldShmSize,MAXLOG2RANKSPERNODE);
assert(log2size != -1);
////////////////////////////////////////////////////////////////
// Identify subblock of ranks on node spreading across dims
@ -293,15 +315,10 @@ void GlobalSharedMemory::OptimalCommunicatorSharedMemory(const Coordinate &proce
////////////////////////////////////////////////////////////////
int ndimension = processors.size();
Coordinate processor_coor(ndimension);
Coordinate WorldDims = processors; Coordinate ShmDims(ndimension,1); Coordinate NodeDims (ndimension);
Coordinate WorldDims = processors; Coordinate ShmDims(ndimension); Coordinate NodeDims (ndimension);
Coordinate ShmCoor(ndimension); Coordinate NodeCoor(ndimension); Coordinate WorldCoor(ndimension);
int dim = 0;
for(int l2=0;l2<log2size;l2++){
while ( (WorldDims[dim] / ShmDims[dim]) <= 1 ) dim=(dim+1)%ndimension;
ShmDims[dim]*=2;
dim=(dim+1)%ndimension;
}
GetShmDims(WorldDims,ShmDims);
////////////////////////////////////////////////////////////////
// Establish torus of processes and nodes with sub-blockings
////////////////////////////////////////////////////////////////
@ -418,7 +435,11 @@ void GlobalSharedMemory::SharedMemoryAllocate(uint64_t bytes, int flags)
// e.g. DGX1, supermicro board,
//////////////////////////////////////////////////////////////////////////////////////////////////////////
// cudaDeviceGetP2PAttribute(&perfRank, cudaDevP2PAttrPerformanceRank, device1, device2);
#ifdef GRID_IBM_SUMMIT
std::cout << header << "flag IBM_SUMMIT disabled CUDA set device: ensure jsrun is used correctly" <<std::endl;
#else
cudaSetDevice(WorldShmRank);
#endif
///////////////////////////////////////////////////////////////////////////////////////////////////////////
// Each MPI rank should allocate our own buffer
///////////////////////////////////////////////////////////////////////////////////////////////////////////

20
Grid/util/Init.cc
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@ -292,7 +292,7 @@ void GridGpuInit(void)
gpu_props = new cudaDeviceProp[nDevices];
char * localRankStr = NULL;
int rank = 0, device = 0, world_rank=0;
int rank = 0, world_rank=0;
#define ENV_LOCAL_RANK_OMPI "OMPI_COMM_WORLD_LOCAL_RANK"
#define ENV_LOCAL_RANK_MVAPICH "MV2_COMM_WORLD_LOCAL_RANK"
#define ENV_RANK_OMPI "OMPI_COMM_WORLD_RANK"
@ -301,23 +301,16 @@ void GridGpuInit(void)
if ((localRankStr = getenv(ENV_LOCAL_RANK_OMPI)) != NULL)
{
rank = atoi(localRankStr);
device = rank %nDevices;
}
if ((localRankStr = getenv(ENV_LOCAL_RANK_MVAPICH)) != NULL)
{
rank = atoi(localRankStr);
device = rank %nDevices;
}
if ((localRankStr = getenv(ENV_RANK_OMPI )) != NULL) { world_rank = atoi(localRankStr);}
if ((localRankStr = getenv(ENV_RANK_MVAPICH)) != NULL) { world_rank = atoi(localRankStr);}
cudaSetDevice(device);
if ( world_rank == 0 ) {
GridBanner();
printf("GpuInit: ================================================\n");
printf("GpuInit: Setting up Cuda Device map before first MPI call\n",nDevices);
printf("GpuInit: ================================================\n");
printf("GpuInit: Cuda reports %d GPUs on MPI rank 0\n",nDevices);
}
for (int i = 0; i < nDevices; i++) {
@ -325,7 +318,6 @@ void GridGpuInit(void)
#define GPU_PROP_FMT(canMapHostMemory,FMT) printf("GpuInit: " #canMapHostMemory ": " FMT" \n",prop.canMapHostMemory);
#define GPU_PROP(canMapHostMemory) GPU_PROP_FMT(canMapHostMemory,"%d");
// cudaGetDeviceProperties(&prop, i);
cudaGetDeviceProperties(&gpu_props[i], i);
if ( world_rank == 0) {
cudaDeviceProp prop;
@ -334,15 +326,13 @@ void GridGpuInit(void)
printf("GpuInit: Device Number : %d\n", i);
printf("GpuInit: ========================\n");
printf("GpuInit: Device identifier: %s\n", prop.name);
// printf("GpuInit: Peak Memory Bandwidth (GB/s): %f\n",(float)2.0*prop.memoryClockRate*(prop.memoryBusWidth/8)/1.0e6);
GPU_PROP(managedMemory);
GPU_PROP(isMultiGpuBoard);
GPU_PROP(warpSize);
#if 0
GPU_PROP(unifiedAddressing);
GPU_PROP(l2CacheSize);
GPU_PROP(singleToDoublePrecisionPerfRatio);
#endif
// GPU_PROP(unifiedAddressing);
// GPU_PROP(l2CacheSize);
// GPU_PROP(singleToDoublePrecisionPerfRatio);
}
}
if ( world_rank == 0 ) {

32
configure.ac
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@ -67,7 +67,6 @@ AC_CHECK_HEADERS(malloc/malloc.h)
AC_CHECK_HEADERS(malloc.h)
AC_CHECK_HEADERS(endian.h)
AC_CHECK_HEADERS(execinfo.h)
AC_CHECK_HEADERS(numaif.h)
AC_CHECK_DECLS([ntohll],[], [], [[#include <arpa/inet.h>]])
AC_CHECK_DECLS([be64toh],[], [], [[#include <arpa/inet.h>]])
@ -136,6 +135,18 @@ case ${ac_SFW_FP16} in
AC_MSG_ERROR(["SFW FP16 option not supported ${ac_SFW_FP16}"]);;
esac
############### SUMMIT JSRUN
AC_ARG_ENABLE([jsrun],
[AC_HELP_STRING([--enable-jsrun=yes|no], [enable IBMs jsrun resource manager for SUMMIT])],
[ac_JSRUN=${enable_jsrun}], [ac_JSRUN=no])
case ${ac_JSRUN} in
yes)
AC_DEFINE([GRID_IBM_SUMMIT],[1],[Let JSRUN manage the GPU device allocation]);;
no);;
*)
AC_MSG_ERROR(["JSRUN option not supported ${ac_JSRUN}"]);;
esac
############### Intel libraries
AC_ARG_ENABLE([mkl],
[AC_HELP_STRING([--enable-mkl=yes|no|prefix], [enable Intel MKL for LAPACK & FFTW])],
@ -173,19 +184,6 @@ AC_ARG_WITH([hdf5],
[AM_CXXFLAGS="-I$with_hdf5/include $AM_CXXFLAGS"]
[AM_LDFLAGS="-L$with_hdf5/lib $AM_LDFLAGS"])
############### first-touch
AC_ARG_ENABLE([numa],
[AC_HELP_STRING([--enable-numa=yes|no|prefix], [enable first touch numa opt])],
[ac_NUMA=${enable_NUMA}],[ac_NUMA=no])
case ${ac_NUMA} in
no)
;;
yes)
AC_DEFINE([GRID_NUMA],[1],[First touch numa locality]);;
*)
AC_DEFINE([GRID_NUMA],[1],[First touch numa locality]);;
esac
############### Checks for library functions
CXXFLAGS_CPY=$CXXFLAGS
@ -241,10 +239,6 @@ AC_SEARCH_LIBS([crc32], [z],
[have_zlib=true] [LIBS="${LIBS} -lz"],
[AC_MSG_ERROR(zlib library was not found in your system.)])
AC_SEARCH_LIBS([move_pages], [numa],
[AC_DEFINE([HAVE_LIBNUMA], [1], [Define to 1 if you have the `LIBNUMA' library])]
[have_libnuma=true] [LIBS="${LIBS} -lnuma"],
[AC_MSG_WARN(libnuma library was not found in your system. Some optimisations will not apply)])
AC_SEARCH_LIBS([H5Fopen], [hdf5_cpp],
[AC_DEFINE([HAVE_HDF5], [1], [Define to 1 if you have the `HDF5' library])]
@ -263,7 +257,7 @@ AC_ARG_ENABLE([gen-simd-width],
[AS_HELP_STRING([--enable-gen-simd-width=size],
[size (in bytes) of the generic SIMD vectors (default: 32)])],
[ac_gen_simd_width=$enable_gen_simd_width],
[ac_gen_simd_width=32])
[ac_gen_simd_width=64])
AC_ARG_ENABLE([gen-scalar],
[AS_HELP_STRING([--enable-gen-scalar=yes|no],