[mvapich-discuss] Getting Started Help

Galloway, Michael D. gallowaymd at ornl.gov
Tue Jun 7 12:05:48 EDT 2016


Alright, I will confess to being a n00b with mpich/mvapich2, I’m trying to understand how to build and run apps on our clusters. My build is this:

[mgx at mod-condo-login01 mv2]$ mpichversion
MVAPICH2 Version:           2.1
MVAPICH2 Release date: Fri Apr 03 20:00:00 EDT 2015
MVAPICH2 Device:            ch3:nemesis
MVAPICH2 configure:       --with-device=ch3:nemesis:ib --with-pbs=/opt/torque --enable-hwlock --prefix=/software/tools/apps/mvapich2/gcc4/2.1
MVAPICH2 CC:    gcc    -DNDEBUG -DNVALGRIND -O2
MVAPICH2 CXX: g++   -DNDEBUG -DNVALGRIND -O2
MVAPICH2 F77: gfortran   -O2
MVAPICH2 FC:     gfortran   -O2

[mgx at mod-condo-login01 mv2]$ mpicc -v
mpicc for MVAPICH2 version 2.1
Using built-in specs.
COLLECT_GCC=gcc
COLLECT_LTO_WRAPPER=/usr/libexec/gcc/x86_64-redhat-linux/4.8.5/lto-wrapper
Target: x86_64-redhat-linux
Configured with: ../configure --prefix=/usr --mandir=/usr/share/man --infodir=/usr/share/info --with-bugurl=http://bugzilla.redhat.com/bugzilla --enable-bootstrap --enable-shared --enable-threads=posix --enable-checking=release --with-system-zlib --enable-__cxa_atexit --disable-libunwind-exceptions --enable-gnu-unique-object --enable-linker-build-id --with-linker-hash-style=gnu --enable-languages=c,c++,objc,obj-c++,java,fortran,ada,go,lto --enable-plugin --enable-initfini-array --disable-libgcj --with-isl=/builddir/build/BUILD/gcc-4.8.5-20150702/obj-x86_64-redhat-linux/isl-install --with-cloog=/builddir/build/BUILD/gcc-4.8.5-20150702/obj-x86_64-redhat-linux/cloog-install --enable-gnu-indirect-function --with-tune=generic --with-arch_32=x86-64 --build=x86_64-redhat-linux
Thread model: posix
gcc version 4.8.5 20150623 (Red Hat 4.8.5-4) (GCC)


Our cluster is IB fabric like:

[mgx at mod-condo-login01 mv2]$ ibv_devinfo
hca_id:  mlx4_0
                transport:                                             InfiniBand (0)
                fw_ver:                                                  2.34.5000
                node_guid:                                           e41d:2d03:007b:eff0
                sys_image_guid:                                 e41d:2d03:007b:eff3
                vendor_id:                                            0x02c9
                vendor_part_id:                                  4099
                hw_ver:                                                 0x0
                board_id:                                              MT_1090120019
                phys_port_cnt:                                    2
                                port:       1
                                                state:                                     PORT_ACTIVE (4)
                                                max_mtu:                             4096 (5)
                                                active_mtu:                         4096 (5)
                                                sm_lid:                                   1
                                                port_lid:                                170
                                                port_lmc:                              0x00
                                                link_layer:                             InfiniBand

                                port:       2
                                                state:                                     PORT_ACTIVE (4)
                                                max_mtu:                             4096 (5)
                                                active_mtu:                         4096 (5)
                                                sm_lid:                                   0
                                                port_lid:                                0
                                                port_lmc:                              0x00
                                                link_layer:                             Ethernet

I build the simple hellow.c code thus:

[mgx at mod-condo-login01 mv2]$ mpicc hellow.c -o hellow
[mgx at mod-condo-login01 mv2]$ ldd hellow
                linux-vdso.so.1 =>  (0x00007ffee85e7000)
                libmpi.so.12 => /software/tools/apps/mvapich2/gcc4/2.1/lib/libmpi.so.12 (0x00002b23cb5b7000)
                libc.so.6 => /lib64/libc.so.6 (0x00002b23cbb0b000)
                librt.so.1 => /lib64/librt.so.1 (0x00002b23cbecc000)
                libnuma.so.1 => /lib64/libnuma.so.1 (0x00002b23cc0d4000)
                libxml2.so.2 => /lib64/libxml2.so.2 (0x00002b23cc2e0000)
                libdl.so.2 => /lib64/libdl.so.2 (0x00002b23cc649000)
                libibumad.so.3 => /lib64/libibumad.so.3 (0x00002b23cc84d000)
                libibverbs.so.1 => /lib64/libibverbs.so.1 (0x00002b23cca56000)
                libgfortran.so.3 => /lib64/libgfortran.so.3 (0x00002b23ccc68000)
                libm.so.6 => /lib64/libm.so.6 (0x00002b23ccf8a000)
                libpthread.so.0 => /lib64/libpthread.so.0 (0x00002b23cd28c000)
                libgcc_s.so.1 => /lib64/libgcc_s.so.1 (0x00002b23cd4a8000)
                libquadmath.so.0 => /lib64/libquadmath.so.0 (0x00002b23cd6be000)
                /lib64/ld-linux-x86-64.so.2 (0x00002b23cb393000)
                libz.so.1 => /lib64/libz.so.1 (0x00002b23cd8fa000)
                liblzma.so.5 => /lib64/liblzma.so.5 (0x00002b23cdb10000)
                libnl-route-3.so.200 => /lib64/libnl-route-3.so.200 (0x00002b23cdd35000)
                libnl-3.so.200 => /lib64/libnl-3.so.200 (0x00002b23cdf84000)

and a simple run errors like this:

[mgx at mod-condo-login01 mv2]$  mpirun_rsh -np 1 mod-condo-c01 /home/mgx/testing/mv2/hellow
Fatal error in MPI_Init: Other MPI error, error stack:
MPIR_Init_thread(514)..........:
MPID_Init(359).................: channel initialization failed
MPIDI_CH3_Init(131)............:
MPIDI_CH3I_SHMEM_COLL_Init(932): write: Success
[mod-condo-c01.ornl.gov:mpispawn_0][readline] Unexpected End-Of-File on file descriptor 5. MPI process died?
[mod-condo-c01.ornl.gov:mpispawn_0][mtpmi_processops] Error while reading PMI socket. MPI process died?
[mod-condo-c01.ornl.gov:mpispawn_0][child_handler] MPI process (rank: 0, pid: 106241) exited with status 1
[mgx at mod-condo-login01 mv2]$ [mod-condo-c01.ornl.gov:mpispawn_0][report_error] connect() failed: Connection refused (111)

I know I must be doing some simple mistakes, I am used to working with openmpi. Thanks!

--- Michael

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