Looks like you have installed mpich under root. Just to confirm, are you running mpiexec.hydra under root too? — Huiwei On May 21, 2014, at 9:14 PM, Yida Wang <[email protected]> wrote:

1. -rwxr-xr-x 1 root root 1460092 May 21 20:41 mpiexec.hydra 2. not a dynamic executable

Thanks, YW

On Wed, May 21, 2014 at 10:11 PM, Lu, Huiwei <[email protected]> wrote: This looks more like a Linux problem rather than a MPICH problem. Could you give us the output of the following commands? 1. ls -la mpiexec.hydra 2. ldd -r mpiexec.hydra

— Huiwei

On May 21, 2014, at 8:53 PM, Yida Wang <[email protected]> wrote:

...

The same error: -bash: ./mpiexec.hydra: cannot execute binary file

On Wed, May 21, 2014 at 9:52 PM, Junchao Zhang <[email protected]> wrote: You can go to the directory with mpiexec.hydra, and type ./mpiexec.hydra, to see what happens.

--Junchao Zhang

On Wed, May 21, 2014 at 8:48 PM, Yida Wang <[email protected]> wrote: Linux xxx 2.6.32-279.14.1.el6.x86_64 #1 SMP Tue Nov 6 23:43:09 UTC 2012 x86_64 x86_64 x86_64 GNU/Linux

On Wed, May 21, 2014 at 9:46 PM, Junchao Zhang <[email protected]> wrote: What is the output of "uname -a" on your machine?

--Junchao Zhang

On Wed, May 21, 2014 at 8:05 PM, Yida Wang <[email protected]> wrote: Hi Guys,

I just finished installing mpich. But when I tried to run it, it returned "cannot execute binary file". I double checked the file type by "file mpiexec.hydra", which got "mpiexec.hydra: ELF 64-bit LSB executable, version 1 (SYSV), dynamically linked (uses shared libs), for GNU/Linux 2.6.16, not stripped". I am running 64-bit CentOS.

Any ideas of this error?

Thanks, YW

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