On Mar 9, 2006, at 12:18 PM, Pierre Valiron wrote:
- 'mpirun --help' non longer crashes.
Improvement :)
- standard output seems messy:
a) 'mpirun -np 4 pwd' returns randomly 1 or two lines, never 4. The
same behaviour occurs if the output is redirected to a file.
b) When running some simple "demo" fortran code, the standard
output is buffered within open-mpi and all results are issued at
the end. No intermediates are showed.
Ok, I know what the issue here is. We don't properly support ptys on
Solaris, so the Fortran code is going into page buffering mode
causing all kinds of issues. I think the same problem may be
responsible for the issues with the race condition for short lived
programs. I'm working on a fix for this issue, but it might take a
bit of time.
- running a slightly more elaborate program fails:
a) compile behaves differently with mpif77 and mpif90.
While mpif90 compiles and builds "silently", mpif77 is talkative:
valiron@icare ~/BENCHES > mpif77 -xtarget=opteron -xarch=amd64 -o
all all.f
NOTICE: Invoking /opt/Studio11/SUNWspro/bin/f90 -f77 -ftrap=%none -
I/users/valiron/lib/openmpi-1.1a1r9224/include -xtarget=opteron -
xarch=amd64 -o all all.f -L/users/valiron/lib/openmpi-1.1a1r9224/
lib -lmpi -lorte -lopal -lsocket -lnsl -lrt -lm -lthread -ldl
all.f:
rw_sched:
MAIN all:
lam_alltoall:
my_alltoall1:
my_alltoall2:
my_alltoall3:
my_alltoall4:
check_buf:
alltoall_sched_ori:
alltoall_sched_new:
b) whatever the code was compiled with mpif77 or mpif90, execution
fails:
valiron@icare ~/BENCHES > mpirun -np 2 all
Signal:11 info.si_errno:0(Error 0) si_code:1(SEGV_MAPERR)
Failing at addr:40
*** End of error message ***
Signal:11 info.si_errno:0(Error 0) si_code:1(SEGV_MAPERR)
Failing at addr:40
*** End of error message ***
Compiling with -g adds no more information.
Doh, that probably shouldn't be happening. I'll try to investigate
further once I have the pty issues sorted out.
Brian
--
Brian Barrett
Open MPI developer
http://www.open-mpi.org/
