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

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