I was able to run ksp ex56 manually. This machine requires an inscrutable workflow. I built the code in my home directory, copied the executable to a working directory and ran there. I have seen my colleagues do this copy business that is clearly not in PETSc tests. I don't understand it but I can I can hand if off to my users with some assurance that it _can_ work! Thanks, Mark On Mon, Oct 29, 2018 at 7:23 PM Balay, Satish <[email protected]> wrote:

On Mon, 29 Oct 2018, Mark Adams via petsc-dev wrote:

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Pushing language C Popping language C Executing: cc -o /tmp/petsc-yiGfSd/config.packages.MPI/conftest -O /tmp/petsc-yiGfSd/config.packages.MPI/conftest.o -ldl Testing executable /tmp/petsc-yiGfSd/config.packages.MPI/conftest to

see

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if it can be run Executing: /tmp/petsc-yiGfSd/config.packages.MPI/conftest Executing: /tmp/petsc-yiGfSd/config.packages.MPI/conftest ERROR while running executable: Could not execute "['/tmp/petsc-yiGfSd/config.packages.MPI/conftest']": [Mon Oct 29 17:44:45 2018] [unknown] Fatal error in MPI_Init: Other MPI error, error stack: MPIR_Init_thread(537): MPID_Init(249).......: channel initialization failed MPID_Init(638).......: PMI2 init failed: 1

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So all MPI tests fail on frontend? And you need to use --with-batch?

I ran the tests from an interactive shell. I guess I should run configure from an interactive shell. but configure and make seemed to work.

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Executing: aprun /tmp/petsc-yiGfSd/config.libraries/conftest Executing: aprun /tmp/petsc-yiGfSd/config.libraries/conftest stdout: XALT Error: unable to find aprun ERROR while running executable: Could not execute "['aprun /tmp/petsc-yiGfSd/config.libraries/conftest']": XALT Error: unable to find aprun

Are you able to use 'aprun' via interactive nodes to run MPI jobs? Somehow configure is unable to use aprun.

Satish