Hi,

I'm a bit confused by the correct way for interacting mpiexec with sge.

here is my original way of interacting mpich2 with sge successfully but failed with mpich3.

1. using qsub submit 2 subjobs at the same time:

qsub -P bhosts - pe mt 1 ./myscript

2. Using lock file handle to a temporary file to decide master and slave.

3. Both master and slave echo host name to a hosts file.

4. run mpiexec -n 2 -f hosts ./mybinary(this one always fail)

5. I tried to change command in 4th to mpiexec -launcher sge -n 2 -f hosts ./mybinary but also fails.

as mpiexec -help says, mpiexec will automatically interact with resource manager like sge, lsf, I'm a bit confused about the right way to interact with sge.

do you know what's wrong with my application?

Thanks,

Shuwei