在腾讯云上构建高性能计算平台：从零开始的实战指南

# 更新软件包列表
sudo apt update

# 安装SLURM
sudo apt install slurm-wlm

# 安装OpenMPI
sudo apt install openmpi-bin openmpi-common libopenmpi-dev

# 配置SLURM
sudo vim /etc/slurm-llnl/slurm.conf

# 配置文件示例
ControlMachine=localhost
MpiDefault=none
ProctrackType=proctrack/linuxproc
ReturnToService=2
SlurmctldPort=6817
SlurmdPort=6818
AuthType=auth/munge
# 省略其他配置项...

# 挂载云硬盘
sudo mkfs.ext4 /dev/vdb
sudo mkdir /data
sudo mount /dev/vdb /data

# 自动挂载配置
sudo vim /etc/fstab
/dev/vdb /data ext4 defaults 0 0

#include <mpi.h>
#include <stdio.h>
#include <stdlib.h>

#define N 1000

int main(int argc, char *argv[]) {
    int rank, size;
    double A[N][N], B[N][N], C[N][N];

    // 初始化MPI环境
    MPI_Init(&argc, &argv);
    MPI_Comm_rank(MPI_COMM_WORLD, &rank);
    MPI_Comm_size(MPI_COMM_WORLD, &size);

    // 矩阵初始化
    for (int i = 0; i < N; i++) {
        for (int j = 0; j < N; j++) {
            A[i][j] = i + j;
            B[i][j] = i - j;
            C[i][j] = 0.0;
        }
    }

    // 矩阵乘法
    for (int i = rank; i < N; i += size) {
        for (int j = 0; j < N; j++) {
            for (int k = 0; k < N; k++) {
                C[i][j] += A[i][k] * B[k][j];
            }
        }
    }

    // 终止MPI环境
    MPI_Finalize();
    printf("Rank %d completed.\n", rank);
    return 0;
}

# 编译应用
mpicc -o matrix_mul matrix_mul.c

# 运行应用
mpirun -np 4 ./matrix_mul