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README.md
cg.c
cg.h
cg_cuda.cu
cg_mpi.c
cuda.h
main.c
makefile
matrices/
mmio.c
mmio.h
mmio_wrapper.h
mpi.c
mpi.h
parameters.h
util.c
util.h
vec.c
vec.h
vec_cuda.cu

README.md

CONJUGATE GRADIENT PROJECT

Requirements

  • for cg: mpicc or mpiicc
  • for cg_gpu: CUDA® compiler

Build

Compile CPU version on fidis:

module load intel intel-mpi
make cg

Compile GPU version on deneb{1,2}:

slmodules -s x86_E5v2_Mellanox_GPU
module load gcc cuda
make cg_gpu

Run

As an example, we show a sbatch script to run the CPU version:

#!/bin/bash -l
#SBATCH --reservation cours-phpc2020
#SBATCH --account phpc2020
#SBATCH --job-name=p16
#SBATCH --ntasks=16
#SBATCH --mem-per-cpu=1GB
#SBATCH --time=80:00
module purge
module load intel intel-mpi
srun ./cg <matrix file> [mode]

mode can be 0 (dense solver) or 1 (sparse solver). Default value is 0.

The matrix format is Matrix Market format (.mtx extension).

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