使用OpenMP编译简单的Hello World脚本时,在编译过程中出现致命错误,指出未找到mpi.h。
当前,服务器已通过模块安装并加载了openmp 1.6.5。这是一些有用的信息:
which mpicc
/cm/shared/apps/openmpi/gcc/64/1.6.5/bin/mpicc
mpicc -showme
gcc -I/cm/shared/apps/openmpi/gcc/64/1.6.5/include -pthread -L/cm/shared/apps/openmpi/gcc/64/1.6.5/lib64 -lmpi -ldl -lm -lnuma -Wl,--export-dynamic -lrt -lnsl -lutil -lm -ldl
ls /cm/shared/apps/openmpi/gcc/64/1.6.5/include/
mpi-ext.h mpif-config.h mpif-mpi-io.h mpi_portable_platform.h vampirtrace
mpif-common.h mpif.h mpi.h openmpi
这是Hello World C代码:
#include <mpi.h>
#include <stdio.h>
int main(int argc, char** argv) {
// Initialize the MPI environment
MPI_Init(NULL, NULL);
// Get the number of processes
int world_size;
MPI_Comm_size(MPI_COMM_WORLD, &world_size);
// Get the rank of the process
int world_rank;
MPI_Comm_rank(MPI_COMM_WORLD, &world_rank);
// Get the name of the processor
char processor_name[MPI_MAX_PROCESSOR_NAME];
int name_len;
MPI_Get_processor_name(processor_name, &name_len);
// Print off a hello world message
printf("Hello world from processor %s, rank %d out of %d processors\n",
processor_name, world_rank, world_size);
// Finalize the MPI environment.
MPI_Finalize();
}
mpicc mpi_hello.cpp -o $@
mpi_hello.cpp:1:17: fatal error: mpi.h: No such file or directory
#include <mpi.h>
^
compilation terminated.