Preprocessing crashes

[xuyinghai]

My simple MPI hello world program with AllReduce works. But the following run doesn't work. Is it because MPI_THREAD_SERIALIZED?

$ mpirun -n 2 ./pagerank ../../inputs/soc-LiveJournal1.txt.bsnap 4847571 1
thread support level provided by MPI: MPI_THREAD_SERIALIZED
|V| = 4847571, |E| = 68475391
|V'_0| = 1261568 |E^dense_0| = 43518651
|V'_1| = 3586003 |E^dense_1| = 24956740
|V'_0_0| = 1261568 |E^dense_0_0| = 43518651
|V'_1_0| = 3586003 |E^dense_1_0| = 24956740
[yuxing-desk:01757] *** Process received signal ***
[yuxing-desk:01757] Signal: Segmentation fault (11)
[yuxing-desk:01757] Signal code: Address not mapped (1)
[yuxing-desk:01757] Failing at address: 0x14ec650
[yuxing-desk:01757] [ 0] /lib/x86_64-linux-gnu/libpthread.so.0(+0x11390)[0x7ff406b0d390]
[yuxing-desk:01757] [ 1] /usr/lib/openmpi/lib/openmpi/mca_pml_ob1.so(mca_pml_ob1_recv_request_progress_frag+0x59)[0x7ff3f98dbc19]
[yuxing-desk:01757] [ 2] /usr/lib/openmpi/lib/openmpi/mca_btl_vader.so(mca_btl_vader_poll_handle_frag+0x93)[0x7ff3fa344813]
[yuxing-desk:01757] [ 3] /usr/lib/openmpi/lib/openmpi/mca_btl_vader.so(+0x3abe)[0x7ff3fa344abe]
[yuxing-desk:01757] [ 4] /usr/lib/libopen-pal.so.13(opal_progress+0x4a)[0x7ff40602d1ea]
[yuxing-desk:01757] [ 5] /usr/lib/openmpi/lib/openmpi/mca_pml_ob1.so(mca_pml_ob1_send+0x4c5)[0x7ff3f98d5745]
[yuxing-desk:01757] [ 6] /usr/lib/libmpi.so.12(PMPI_Send+0x14b)[0x7ff40753ccdb]
[yuxing-desk:01757] [ 7] ./pagerank[0x4151dd]
[yuxing-desk:01757] [ 8] ./pagerank[0x409db3]
[yuxing-desk:01757] [ 9] /lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xf0)[0x7ff406752830]
[yuxing-desk:01757] [10] ./pagerank[0x409f79]
[yuxing-desk:01757] *** End of error message ***
--------------------------------------------------------------------------
mpirun noticed that process rank 1 with PID 1757 on node yuxing-desk exited on signal 11 (Segmentation fault).
--------------------------------------------------------------------------

[coolerzxw]

Yes MPI_THREAD_MULTIPLE is required.