add example5 - simple stencil2d

[haichangsi]

No description provided.

[mateuszpn]

Simple run on devcloud resulted in segfault. Why?

uab8f7faf7d5cc8a0d0c8bf0d3553a43@idc-beta-batch-head-node:~/work/tutorial-haichangsi$ ./build/src/example5
[1699013467.650602] [idc-beta-batch-head-node:1991980:0]        ib_iface.c:1017 UCX  ERROR ibv_create_cq(cqe=4096) failed: Cannot allocate memory : Please set max locked memory (ulimit -l) to 'unlimited' (current: 4096 kbytes)
Abort(1615247) on node 0 (rank 0 in comm 0): Fatal error in PMPI_Init: Other MPI error, error stack:
MPIR_Init_thread(176)........:
MPID_Init(1548)..............:
MPIDI_OFI_mpi_init_hook(1632):
create_vni_context(2208).....: OFI endpoint open failed (ofi_init.c:2208:create_vni_context:Input/output error)
[unset]: write_line error; fd=-1 buf=:cmd=abort exitcode=1615247
:
system msg for write_line failure : Bad file descriptor
Abort(1615247) on node 0 (rank 0 in comm 0): Fatal error in PMPI_Init: Other MPI error, error stack:
MPIR_Init_thread(176)........:
MPID_Init(1548)..............:
MPIDI_OFI_mpi_init_hook(1632):
create_vni_context(2208).....: OFI endpoint open failed (ofi_init.c:2208:create_vni_context:Input/output error)
[unset]: write_line error; fd=-1 buf=:cmd=abort exitcode=1615247
:
system msg for write_line failure : Bad file descriptor
Segmentation fault

[haichangsi]

Simple run on devcloud resulted in segfault. Why?

uab8f7faf7d5cc8a0d0c8bf0d3553a43@idc-beta-batch-head-node:~/work/tutorial-haichangsi$ ./build/src/example5
[1699013467.650602] [idc-beta-batch-head-node:1991980:0]        ib_iface.c:1017 UCX  ERROR ibv_create_cq(cqe=4096) failed: Cannot allocate memory : Please set max locked memory (ulimit -l) to 'unlimited' (current: 4096 kbytes)
Abort(1615247) on node 0 (rank 0 in comm 0): Fatal error in PMPI_Init: Other MPI error, error stack:
MPIR_Init_thread(176)........:
MPID_Init(1548)..............:
MPIDI_OFI_mpi_init_hook(1632):
create_vni_context(2208).....: OFI endpoint open failed (ofi_init.c:2208:create_vni_context:Input/output error)
[unset]: write_line error; fd=-1 buf=:cmd=abort exitcode=1615247
:
system msg for write_line failure : Bad file descriptor
Abort(1615247) on node 0 (rank 0 in comm 0): Fatal error in PMPI_Init: Other MPI error, error stack:
MPIR_Init_thread(176)........:
MPID_Init(1548)..............:
MPIDI_OFI_mpi_init_hook(1632):
create_vni_context(2208).....: OFI endpoint open failed (ofi_init.c:2208:create_vni_context:Input/output error)
[unset]: write_line error; fd=-1 buf=:cmd=abort exitcode=1615247
:
system msg for write_line failure : Bad file descriptor
Segmentation fault

as we talked, I think it's because of your specific MPI configuration