Hi Siegmar,

Thanks for providing us the test machine. We have confirmed this failure is caused by unaligned memory access inside MPICH. So the failure only happens on SPARC, which is alignment-sensitive.

We will fix it. You can track the progress from this ticket.
https://trac.mpich.org/projects/mpich/ticket/2309#ticket

Because we do not have other SPARC platform, would you mind if we use your machine for testing during this fix ?

Best regards,
Min

On 10/12/15 9:24 AM, Siegmar Gross wrote:

Hi Min,

It seems you already enabled the most detailed error outputs. We could
not think out any clue for now. If you can give us access to your
machine, we are glad to help you debug on it.

Can you send me your email address because I don't want to send
login data to this list.

Kind regards

Siegmar

Min

On 10/8/15 12:02 AM, Siegmar Gross wrote:

Hi Min,

thank you very much for your answer.

We cannot reproduce this error on our test machines (Solaris i386,
Ubuntu x86_64) by using your programs. And unfortunately we do not have
Solaris Sparc machine thus could not verify it.

The programs work fine on my Solaris x86_64 and Linux machines
as well. I only have a problem on Solaris Sparc.

Sometime, it can happen that you need to add "./" in front of the
program path, could you try it ?

For example, in spawn_master.c MPI: A Message-Passing Interface Standard

#define SLAVE_PROG      "./spawn_slave"

No, it wil not work, because the programs are stored in a
different directory ($HOME/{SunOS, Linux}/{sparc, x86_64}/bin)
which is part of PATH (as well as ".").

Can I do anything to track the source of the error?

Kind regards

Siegmar

Min

On 10/7/15 5:03 AM, Siegmar Gross wrote:

Hi,

today I've built mpich-3.2rc1 on my machines (Solaris 10 Sparc,
Solaris 10 x86_64, and openSUSE Linux 12.1 x86_64) with gcc-5.1.0
and Sun C 5.13. I still get the following errors on my Sparc machine
which I'd already reported September 8th. "mpiexec" is aliased to
'mpiexec -genvnone'. It still doesn't matter if I use my cc- or
gcc-version of MPICH.

tyr spawn 119 mpichversion
MPICH Version:          3.2rc1
MPICH Release date:     Wed Oct 7 00:00:33 CDT 2015
MPICH Device:           ch3:nemesis
MPICH configure:        --prefix=/usr/local/mpich-3.2_64_cc
--libdir=/usr/local/mpich-3.2_64_cc/lib64
--includedir=/usr/local/mpich-3.2_64_cc/include64 CC=cc CXX=CC F77=f77
FC=f95 CFLAGS=-m64 CXXFLAGS=-m64 FFLAGS=-m64 FCFLAGS=-m64 LDFLAGS=-m64
-L/usr/lib/sparcv9 -R/usr/lib/sparcv9 --enable-fortran=yes
--enable-cxx --enable-romio --enable-debuginfo --enable-smpcoll
--enable-threads=multiple --with-thread-package=posix --enable-shared
MPICH CC:       cc -m64   -O2
MPICH CXX:      CC -m64 -O2
MPICH F77:      f77 -m64
MPICH FC:       f95 -m64 -O2
tyr spawn 120

tyr spawn 111 mpiexec -np 1 spawn_master

Parent process 0 running on tyr.informatik.hs-fulda.de
I create 4 slave processes

Fatal error in MPI_Comm_spawn: Unknown error class, error stack:
MPI_Comm_spawn(144)...........: MPI_Comm_spawn(cmd="spawn_slave",
argv=0, maxprocs=4, MPI_INFO_NULL, root=0, MPI_COMM_WORLD,
intercomm=ffffffff7fffde50, errors=0) failed
MPIDI_Comm_spawn_multiple(274):
MPID_Comm_accept(153).........:
MPIDI_Comm_accept(1057).......:
MPIR_Bcast_intra(1287)........:
MPIR_Bcast_binomial(310)......: Failure during collective

tyr spawn 112 mpiexec -np 1 spawn_multiple_master

Parent process 0 running on tyr.informatik.hs-fulda.de
I create 3 slave processes.

Fatal error in MPI_Comm_spawn_multiple: Unknown error class, error
stack:
MPI_Comm_spawn_multiple(162)..: MPI_Comm_spawn_multiple(count=2,
cmds=ffffffff7fffde08, argvs=ffffffff7fffddf8,
maxprocs=ffffffff7fffddf0, infos=ffffffff7fffdde8, root=0,
MPI_COMM_WORLD, intercomm=ffffffff7fffdde4, errors=0) failed
MPIDI_Comm_spawn_multiple(274):
MPID_Comm_accept(153).........:
MPIDI_Comm_accept(1057).......:
MPIR_Bcast_intra(1287)........:
MPIR_Bcast_binomial(310)......: Failure during collective

tyr spawn 113 mpiexec -np 1 spawn_intra_comm
Parent process 0: I create 2 slave processes
Fatal error in MPI_Comm_spawn: Unknown error class, error stack:
MPI_Comm_spawn(144)...........: MPI_Comm_spawn(cmd="spawn_intra_comm",
argv=0, maxprocs=2, MPI_INFO_NULL, root=0, MPI_COMM_WORLD,
intercomm=ffffffff7fffded4, errors=0) failed
MPIDI_Comm_spawn_multiple(274):
MPID_Comm_accept(153).........:
MPIDI_Comm_accept(1057).......:
MPIR_Bcast_intra(1287)........:
MPIR_Bcast_binomial(310)......: Failure during collective
tyr spawn 114

I would be grateful if somebody can fix the problem. Thank you very
much for any help in advance. I've attached my programs. Please let
me know if you need anything else.

Kind regards

Siegmar

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