I think the culprit might be that lldb uses the sh shell by default (so it doesn’t use bash). That would explain the problems. I’ll look into how to change that since that’s an lldb issue. Thanks for the help. Martin On Mar 25, 2014, at 3:56 PM, Lu, Huiwei <[email protected]> wrote:

Are you using tcsh? Does bash works for you? http://lists.mpich.org/pipermail/discuss/2014-January/002079.html

— Huiwei Lu Postdoc Appointee Mathematics and Computer Science Division, Argonne National Laboratory http://www.mcs.anl.gov/~huiweilu/

On Mar 25, 2014, at 3:50 PM, Martin Schatz <[email protected]> wrote:

...

Hi,

I’m having an issue debugging an MPI program with lldb on OSX Mavericks. I get the exact behavior as described in

http://lists.mpich.org/pipermail/discuss/2014-January/002074.html

except using lldb instead of gdb as the debugger. I have checked that I am using the bash terminal and unfortunately am still getting the same error.

Details of my installation are as follows:

I have installed the mpich-clang macport (mpich-clang-fortran is active), but when I run the cpi example with

mpiexec -np 1 xterm -e lldb ./cpi

I get the xterm window to spawn but:

Current executable set to './cpi' (x86_64). (lldb) r Process 56694 launched: './cpi' (x86_64) [cli_0]: write_line error; fd=6 buf=:cmd=init pmi_version=1 pmi_subversion=1 : system msg for write_line failure : Bad file descriptor [cli_0]: Unable to write to PMI_fd [cli_0]: write_line error; fd=6 buf=:cmd=get_appnum : system msg for write_line failure : Bad file descriptor Fatal error in MPI_Init: Other MPI error, error stack: MPIR_Init_thread(467): MPID_Init(140).......: channel initialization failed MPID_Init(422).......: PMI_Get_appnum returned -1 Process 56694 exited with status = 1 (0x00000001) (lldb)

The lldb version is: lldb --version lldb-310.2.36

Any help is appreciated.

Martin

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