[maker-devel] thread terminated, causing all processes to fail

[Ramón Fallon]

Hi,

I'm using the maker_svn rev 995 version and hand-compiled MPICH2 on a
single multicore machine.

I've successfully run the dpp_contig.fasta (MPI/8 processes) example but am
having trouble with larger contigs fasta files of my own, which are well
formed.

I've run into a problem whereby an mpiexec run of 8 processes will stop due
to a perl-thread related problem which says

FATAL: Thread terminated, causing all processes to fail

this corresponds to line 924 in the maker executable (which is for the
secondary/worker threads), and is the result of a test on !$thr OR'd with
!$thr->is_running, so clearly one of these is failing.

$thr itself is a threads->new(\&$node_thread, $gdbfile). Despite being a
programmer, I've only recently started to look at the code and have not got
the hang of the parallelisation setup here, though I gather the master must
use threads to initially generate the parallel instances which then use the
message passing. Of course threads don't have message passing ability, so I
guess something clever is going on and will take some time for me to
understand.

Clearly however, it has worked before on dpp_contigs, so it may be is
something wrong with my datafile or the way I am carrying out the analysis.

Any clues that can be put my way are welcome.

Thank you!
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