Anyone have an idea of what this is all about? >> Command: mpirun --hostfile /home/common/hosts -np 16 --prefix >> /home/common/openmpi/build/foobar/ collective/alltoall_in_place Elapsed: 00:00:00 0.00u 0.00s Test: alltoall_in_place, np=16, variant=1: Passed *** Error in `collective/alltoallv_somezeros': free(): invalid pointer: 0x000000000127a180 *** ======= Backtrace: ========= /usr/lib64/libc.so.6(+0x7d1fd)[0x7f46e2fda1fd] /home/common/openmpi/build/foobar/lib/libopen-pal.so.0(+0x2cd05)[0x7f46e2976d05] /home/common/openmpi/build/foobar/lib/openmpi/mca_pml_ob1.so(+0x6f74)[0x7f46dcefaf74] /home/common/openmpi/build/foobar/lib/openmpi/mca_pml_ob1.so(+0x72ee)[0x7f46dcefb2ee] /home/common/openmpi/build/foobar/lib/openmpi/mca_pml_ob1.so(+0x6f74)[0x7f46dcefaf74] /home/common/openmpi/build/foobar/lib/openmpi/mca_pml_ob1.so(+0x76e8)[0x7f46dcefb6e8] /home/common/openmpi/build/foobar/lib/openmpi/mca_pml_ob1.so(+0x3c73)[0x7f46dcef7c73] /home/common/openmpi/build/foobar/lib/openmpi/mca_pml_ob1.so(mca_pml_ob1_del_comm+0xcf)[0x7f46dcef9acc] /home/common/openmpi/build/foobar/lib/libmpi.so.0(+0x2d1df)[0x7f46e35671df] /home/common/openmpi/build/foobar/lib/libmpi.so.0(+0x2b473)[0x7f46e3565473] /home/common/openmpi/build/foobar/lib/libmpi.so.0(ompi_comm_finalize+0x23f)[0x7f46e3566bbd] /home/common/openmpi/build/foobar/lib/libmpi.so.0(ompi_mpi_finalize+0x5fd)[0x7f46e3593df7] /home/common/openmpi/build/foobar/lib/libmpi.so.0(PMPI_Finalize+0x59)[0x7f46e35bd6e5]
Then I see a bunch of dump info, followed by: >> Command: mpirun --hostfile /home/common/hosts -np 16 --prefix >> /home/common/openmpi/build/foobar/ collective/alltoallv_somezeros Elapsed: 00:00:01 0.00u 0.00s Test: alltoallv_somezeros, np=16, variant=1: Passed Ralph