[lammps-users] Error Using MPICH

Tried for the first time to run lammps on windows using MPICH. Command is in the form:

mpiexec –n 4 \bin\lammps < in.file

I get this error (please note that I have changed the account and node names for security purposes) …

User credentials needed to launch processes:

account (domain\user) [ABCD\xyz123: password:

MPICH2 is unable to manage jobs using credentials with a blank password.

Please enter another account.

account (domain\user) [ABCD\xyz123]: password:

Credentials for ########################################### rejected connecting

to abcd1234.nist.gov

Aborting: Unable to connect to abcd1234.nist.gov

What is the deal with the password information?

Thanks,

Fred

Tried for the first time to run lammps on windows using MPICH. Command is in
the form:

mpiexec –n 4 \bin\lammps < in.file

I get this error (please note that I have changed the account and node names
for security purposes) …

User credentials needed to launch processes:

account (domain\user) [ABCD\xyz123: password:

MPICH2 is unable to manage jobs using credentials with a blank password.

Please enter another account.

account (domain\user) [ABCD\xyz123]: password:

Credentials for ########################################### rejected
connecting

to abcd1234.nist.gov

Aborting: Unable to connect to abcd1234.nist.gov

What is the deal with the password information?

why don't you ask that the MPICH folks?
this certainly has nothing to do with LAMMPS.

axel.

Point taken. Thought some folk on the list might have some experience with it ...
Fred

Can you run any of the MPICH test programs via mpirun?
If not, you need to fix that before trying to run LAMMPS.

Steve

I have come several generations since that original post.

I was able to resolve all the original issues, which simply had to with the fact that the installation instructions for MPICH are somewhat incomplete. Conquering installation, I did get the example program to run, but when I run lammps with the Windows binary (lmp_win_mpi.exe) it sits there for a few seconds and then exits. Have not had time to look into this latest issue and remain stuck at this point ... will get back to it later in the week and perhaps figure out how to post to MPICH-discuss at lanl.

BTW, would be glad to post a more complete set of MPICH installation instructions for anyone that needs them.

Fred