...
For code compilation you can choose one of the two compilers Intel or Gnu. Both compilers are able to include the Intel MPI library.
Intel one API compiler
| Codeblock |
|---|
| title | plain MPI, icc |
|---|
| collapse | true |
|---|
|
module load intel/19.0.5
module load impi/2019.5
mpiiccmpiicx -Wl,-rpath,$LD_RUN_PATH -o hello.bin hello.c
mpiifortmpiifx -Wl,-rpath,$LD_RUN_PATH -o hello.bin hello.f90
mpiicpcmpiicpx -Wl,-rpath,$LD_RUN_PATH -o hello.bin hello.cpp |
| Codeblock |
|---|
| title | hybrid MPI, /OpenMP, icc |
|---|
| collapse | true |
|---|
|
module load intel/19.0.5
module load impi/2019.5
mpiiccmpiicx -qopenmpfopenmp -Wl,-rpath,$LD_RUN_PATH -o hello.bin hello.c
mpiifortmpiifx -qopenmpfopenmp -Wl,-rpath,$LD_RUN_PATH -o hello.bin hello.f90
mpiicpcmpiicpx -qopenmpfopenmp -Wl,-rpath,$LD_RUN_PATH -o hello.bin hello.cpp |
...
GNU compiler
| Codeblock |
|---|
| title | plain MPI, gcc |
|---|
| collapse | true |
|---|
|
module load gcc/9.3.0
module load impi/2019.5
mpigcc -Wl,-rpath,$LD_RUN_PATH -o hello.bin hello.c
mpif90 -Wl,-rpath,$LD_RUN_PATH -o hello.bin hello.f90
mpigxx -Wl,-rpath,$LD_RUN_PATH -o hello.bin hello.cpp |
| Codeblock |
|---|
| title | hybrid MPI, /OpenMP gcc |
|---|
| collapse | true |
|---|
|
module load gcc/9.3.0
module load impi/2019.5
mpigcc -fopenmp -Wl,-rpath,$LD_RUN_PATH -o hello.bin hello.c
mpif90 -fopenmp -Wl,-rpath,$LD_RUN_PATH -o hello.bin hello.f90
mpigxx -fopenmp -Wl,-rpath,$LD_RUN_PATH -o hello.bin hello.cpp |
...
Using mpirun the pinning is controlled by the MPI library. Pinning by slurm SLURM you need to switch off by adding export SLURM_CPU_BIND=none.
...