Package: lam4-dev
Version: 7.1.1-3.2
Severity: important
I've tried the following trivial program:
#include <mpi.h>
int
main (int argc, char **argv)
{
MPI_Init (&argc, &argv);
MPI_Finalize ();
}
Compile it:
riff /tmp> mpic++.lam lamtest.cc -o lamtest
/usr/lib/lam/include/mpi2cxx/functions_inln.h: In function 'void
PMPI::Pcontrol(int, ...)':
/usr/lib/lam/include/mpi2cxx/functions_inln.h:249: warning: cannot pass objects
of non-POD type 'struct va_list' through '...'; call will abort at runtime
Ok, pretty weird error but IIRC it emitted it in older LAM-versions as
well.
Running without a lamd fails normally:
riff /tmp> ./lamtest
-----------------------------------------------------------------------------
It seems that there is no lamd running on the host riff.
This indicates that the LAM/MPI runtime environment is not operating.
The LAM/MPI runtime environment is necessary for MPI programs to run
(the MPI program tired to invoke the "MPI_Init" function).
Please run the "lamboot" command the start the LAM/MPI runtime
environment. See the LAM/MPI documentation for how to invoke
"lamboot" across multiple machines.
-----------------------------------------------------------------------------
Exit 215
So let's do it correctly:
riff /tmp> lamboot
LAM 7.1.1/MPI 2 C++/ROMIO - Indiana University
riff /tmp> ./lam
[EMAIL PROTECTED]/ lamtest*
riff /tmp> ./lamtest
[hangs]
Calling "lamnodes" in another shell hangs too, it doesn't if the test
program wasn't started.
I've attached a full strace of lamtest. If I read it correctly the
program opens a socket
chdir("/tmp/[EMAIL PROTECTED]") = 0
socket(PF_FILE, SOCK_STREAM, 0) = 3
connect(3, {sa_family=AF_FILE, path="lam-kernel-socket"}, 19) = 0
chdir("/tmp")
communicates for quite a while until
writev(3, [{"[EMAIL PROTECTED]@\0\0\0\0\0\0\0\0\0\0\0\0"..., 72}, {ptrace:
umoven: Input/output error
and then filehandle 3 seems broken.
Cheers
Thimo
-- System Information:
Debian Release: testing/unstable
APT prefers unstable
APT policy: (500, 'unstable'), (500, 'stable')
Architecture: alpha
Shell: /bin/sh linked to /bin/dash
Kernel: Linux 2.6.12-1-alpha-generic
Locale: [EMAIL PROTECTED], [EMAIL PROTECTED] (charmap=ISO-8859-15)
Versions of packages lam4-dev depends on:
ii dpkg 1.13.11 package maintenance system for Deb
ii lam4c2 7.1.1-3.2 Shared libraries used by LAM paral
ii libc6.1-dev [libc6-dev] 2.3.5-6 GNU C Library: Development Librari
lam4-dev recommends no packages.
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