我正在尝试在4个节点上运行一个简单的MPI程序。我使用的是运行在Centos 5.5上的OpenMPI 1.4.3。当我提交带有hostfile/machinefile的MPIRUN命令时,没有输出,屏幕上显示为空白。因此,我必须终止该作业。
我使用以下运行命令:mpirun --hostfile hostfile -np 4 new46
我使用以下运行命令:mpirun --hostfile hostfile -np 4 new46
OUTPUT ON KILLING JOB:
mpirun: killing job...
--------------------------------------------------------------------------
mpirun noticed that the job aborted, but has no info as to the process that caused
that situation.
--------------------------------------------------------------------------
mpirun was unable to cleanly terminate the daemons on the nodes shown
below. Additional manual cleanup may be required - please refer to
the "orte-clean" tool for assistance.
--------------------------------------------------------------------------
myocyte46 - daemon did not report back when launched
myocyte47 - daemon did not report back when launched
myocyte49 - daemon did not report back when launched
这是我正在尝试在4个节点上执行的MPI程序
**************************
if (my_rank != 0)
{
sprintf(message, "Greetings from the process %d!", my_rank);
dest = 0;
MPI_Send(message, strlen(message)+1, MPI_CHAR, dest, tag, MPI_COMM_WORLD);
}
else
{
for (source = 1;source < p; source++)
{
MPI_Recv(message, 100, MPI_CHAR, source, tag, MPI_COMM_WORLD, &status);
printf("%s\n", message);
}
****************************
我的host文件看起来像这样:
[amohan@myocyte48 ~]$ cat hostfile
myocyte46
myocyte47
myocyte48
myocyte49
*******************************
我在每个节点上独立运行了上述MPI程序,并且编译和运行都很顺利。但是当我使用主机文件时,出现了“守护进程启动后未报告返回”的问题。我正在努力找出可能的原因。
谢谢!