[OMPI users] openmpi-v1.10.0-5-ge0b85ea: problem with Java

[Siegmar Gross]

Hi,

yesterday I have built openmpi-v1.10.0-5-ge0b85ea 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.

Sometimes I have the following problem when I run a small Java
program in my heterogeneous environment. The problem arises
even if I only use my Linux box. It doesn't matter if I use
my cc- or gcc-version of Open MPI. Sometimes I must run the
program 10 times before the error shows up. I couldn't
reproduce the error with openmpi-v2.x-dev-325-g8ae44ea.

linpc1 fd1026 102 mpiexec -np 2 java MsgSendRecvMain


Now 1 process sends its greetings.

Greetings from process 1:
  message tag:    3
  message length: 6
  message:        linpc1



linpc1 fd1026 102 mpiexec -np 4 java MsgSendRecvMain
... (above message)

Now 3 processes are sending greetings.

Greetings from process 3:
  message tag:    3
  message length: 6

9:!"?

Greetings from process 2:
  message tag:    3


Kind regards

Siegmar

Java HotSpot(TM) 64-Bit Server VM warning: You have loaded library /usr/local/openmpi-1.10.1_64_cc/lib64/libmpi_java.so.1.2.0 which might have disabled stack guard. The VM will try to fix the stack guard now. It's highly recommended that you fix the library with 'execstack -c <libfile>', or link it with '-z noexecstack'. Java HotSpot(TM) 64-Bit Server VM warning: You have loaded library /usr/local/openmpi-1.10.1_64_cc/lib64/libmpi_java.so.1.2.0 which might have disabled stack guard. The VM will try to fix the stack guard now. It's highly recommended that you fix the library with 'execstack -c <libfile>', or link it with '-z noexecstack'. message: linpc1??????????????????????????????????????????????????????????????????|}~?(?4???? ?????? ?????? ?????? ????? ???

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