Hi,
In my program I am calling MPI_Barrier(MPI_COMM_WORLD), but it seems to
cause an error on one node. The node changes depending on how many
total nodes I have (it could be 4 or 2). I'm thinking it's MPI_Barrier
because I put print statements around it and that's where the program
terminates. This is the error message that I get:
Signal:11 info.si_errno:0(Success) si_code:1(SEGV_MAPERR)
Failing at addr:0xc900000002
[0] func:/opt/openmpi/st/lib/libopal.so.0 [0x2aaaab04dbc8]
[1] func:/lib64/libpthread.so.0 [0x3be4f0c530]
[2]
func:/opt/openmpi/st/lib/openmpi/mca_pml_ob1.so(mca_pml_ob1_recv+0x2a3)
[0x2aaaacf26f33]
[3]
func:/opt/openmpi/st/lib/openmpi/mca_coll_tuned.so(ompi_coll_tuned_barri
er_intra_recursivedoubling+0x14a) [0x2aaaad8699ba]
[4] func:/opt/openmpi/st/lib/libmpi.so.0(PMPI_Barrier+0xa4)
[0x2aaaaad87294]
[5]
func:Debug/BioRiskAssessmentMpiLibTest(_ZN2BL14CMpiTestRunner11Synchroni
zeEv+0xe) [0x490846]
[6]
func:Debug/BioRiskAssessmentMpiLibTest(_ZN2BL8CMpiTest12FinishedTestEi+0
x3c) [0x490884]
[7]
func:Debug/BioRiskAssessmentMpiLibTest(_ZN15CMpiProcessTest8RunTestsEv+0
x269) [0x490297]
[8]
func:Debug/BioRiskAssessmentMpiLibTest(_ZN29CMpiConsequenceCalculatorTes
t3RunEP19ompi_communicator_t+0xdf) [0x45a8e7]
[9]
func:Debug/BioRiskAssessmentMpiLibTest(_ZN2BL14CMpiTestRunner3RunEv+0x60
) [0x4909ba]
[10] func:Debug/BioRiskAssessmentMpiLibTest(main+0x42) [0x44558a]
[11] func:/lib64/libc.so.6(__libc_start_main+0xef) [0x3be481c40f]
[12] func:Debug/BioRiskAssessmentMpiLibTest(__gxx_personality_v0+0x99)
[0x4454b9]
*** End of error message ***
I'm using version 1.1.2. Not sure if it matters, but before I call the
MPI_Barrier I create a comm subset (which in this case happens to be all
of the same processes that are in MPI_COMM_WORLD).
Does anybody have an idea what might be my problem? Or what I should do
to get more information?
Thanks!
Matt
______________________________
Matt Cupp
Battelle Memorial Institute
Statistics and Information Analysis
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