One more piece of information - can you run ldd ./hello_c to show the linkage of your binary? Thanks, Ken On 08/01/2016 11:24 AM, Gajbe, Manisha wrote:

Hi Kenneth,

Here is the output of "mpichversion" and "mpiexec -info"

[mmgajbe@fm05wcon0025 bin]$ pwd /usr/local/my-mpich-3.2/64bit/bin

[mmgajbe@fm05wcon0025 bin]$ ./mpichversion MPICH Version: 3.2 MPICH Release date: Wed Nov 11 22:06:48 CST 2015 MPICH Device: ch3:nemesis MPICH configure: --prefix=/usr/local/my-mpich-3.2/64bit MPICH CC: icc -O2 MPICH CXX: icpc -O2 MPICH F77: ifort -O2 MPICH FC: ifort -O2

[mmgajbe@fm05wcon0025 bin]$ mpiexec -info HYDRA build details: Version: 3.2 Release Date: Wed Nov 11 22:06:48 CST 2015 CC: icc CXX: icpc F77: ifort F90: ifort Configure options: '--disable-option-checking' '--prefix=/usr/local/my-mpich-3.2/64bit' '--cache-file=/dev/null' '--srcdir=.' 'CC=icc' 'CFLAGS= -O2' 'LDFLAGS=' 'LIBS=-lpthread ' 'CPPFLAGS= -I/home/mmgajbe/Work/Software/mpich-3.2/src/mpl/include -I/home/mmgajbe/Work/Software/mpich-3.2/src/mpl/include -I/home/mmgajbe/Work/Software/mpich-3.2/src/openpa/src -I/home/mmgajbe/Work/Software/mpich-3.2/src/openpa/src -D_REENTRANT -I/home/mmgajbe/Work/Software/mpich-3.2/src/mpi/romio/include' Process Manager: pmi Launchers available: ssh rsh fork slurm ll lsf sge manual persist Topology libraries available: hwloc Resource management kernels available: user slurm ll lsf sge pbs cobalt Checkpointing libraries available: Demux engines available: poll select

Thanks, ~ Manisha

-----Original Message----- From: [email protected] [mailto:[email protected]] Sent: Monday, August 1, 2016 7:36 AM To: [email protected] Subject: discuss Digest, Vol 46, Issue 1

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Today's Topics:

1. Re: Error creating 272 processes on a multicore, single CPU (Kenneth Raffenetti) 2. Broken links on the web site (Michele De Stefano) 3. Re: Broken links on the web site (Halim Amer) 4. Re: Minor compilation problem with 3 mpich (Edric Ellis) 5. Re: Broken links on the web site (Kenneth Raffenetti)

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Message: 1 Date: Thu, 28 Jul 2016 10:51:51 -0500 From: Kenneth Raffenetti <[email protected]> To: <[email protected]> Subject: Re: [mpich-discuss] Error creating 272 processes on a multicore, single CPU Message-ID: <[email protected]> Content-Type: text/plain; charset="utf-8"; format=flowed

Can you also send the output of: /usr/local/my-mpich-3.2/64bit/bin/mpichversion /usr/local/my-mpich-3.2/64bit/bin/mpiexec -info

Something in your error output doesn't look right to me. I'm having a hard time finding the code that would execute a PMI command that causes the string buffer to overflow and omit a newline.

Ken

On 07/26/2016 11:25 AM, Gajbe, Manisha wrote:

...

Hi Kenneth,

The configure script is default except the "prefix". I used Intel compilers version 16.0.2.

$ ./configure --prefix=/usr/local/my-mpich-3.2/64bit

Hi Halim,

I removed all the writes to stdout. No change in the output. Also, the code runs with IntelMPI 5.1.3 without any issues with lots of writes to stdout. Do you have any suggestion on setting up the limits of pipe on what should be the reasonable size.

Below is output from my ulimit

[mmgajbe@fm05wcon0025 Test]$ ulimit -a core file size (blocks, -c) 0 data seg size (kbytes, -d) unlimited scheduling priority (-e) 0 file size (blocks, -f) unlimited pending signals (-i) 62912 max locked memory (kbytes, -l) 64 max memory size (kbytes, -m) unlimited open files (-n) 2048 pipe size (512 bytes, -p) 8 POSIX message queues (bytes, -q) 819200 real-time priority (-r) 0 stack size (kbytes, -s) 8192 cpu time (seconds, -t) unlimited max user processes (-u) 4096 virtual memory (kbytes, -v) unlimited file locks (-x) unlimited

Hi Husen,

I tried on multiple systems with different Oss such as RHEL 7.0, OpenSuse, Ubuntu 12.04 etc. However, the error is observed only with MPICH and not with IntelMPI.

~ Manisha -----Original Message----- From: [email protected] [mailto:[email protected]] Sent: Tuesday, July 26, 2016 9:00 AM To: [email protected] Subject: discuss Digest, Vol 45, Issue 7

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When replying, please edit your Subject line so it is more specific than "Re: Contents of discuss digest..."

Today's Topics:

1. Re: Error creating 272 processes on a multicore, single CPU (Husen R) 2. Segfault with MPICH 3.2+Clang but not GCC (Andreas Noack) 3. Re: Segfault with MPICH 3.2+Clang but not GCC (Jeff Hammond) 4. Re: Segfault with MPICH 3.2+Clang but not GCC (Rob Latham)

----------------------------------------------------------------------

Message: 1 Date: Tue, 26 Jul 2016 10:58:01 +0700 From: Husen R <[email protected]> To: [email protected] Subject: Re: [mpich-discuss] Error creating 272 processes on a multicore, single CPU Message-ID: <CACPfdUsN7N5TwU++tsoPiUGA1kiS3Cm-VGBaXotDfkKcquhiag@mail.gmail.com> Content-Type: text/plain; charset="utf-8"

it seems the number of processes that can be created in one machine limited by Operating System.

On Sat, Jul 23, 2016 at 11:19 AM, Gajbe, Manisha <[email protected]> wrote:

...

Hi,

I have installed mpich-3.2 on a multicore platform. When I spawn 272 processes , I get the error message mentioned below. I am able to create upto 271 processes successfully.

/usr/local/my-mpich-3.2/64bit/bin/mpirun -n 272 ./hello_c

[cli_0]: write_line: message string doesn't end in newline: :cmd=put kvsname=kvs_8846_0 key=r2h1 value=r0#0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,2 3,24,25,26,27,28,29,30,31,32,33,34,35,36,37,38,39,40,41,42,43,44,45,4 6,47,48,49,50,51,52,53,54,55,56,57,58,59,60,61,62,63,64,65,66,67,68,6 9,70,71,72,73,74,75,76,77,78,79,80,81,82,83,84,85,86,87,88,89,90,91,9 2,93,94,95,96,97,98,99,100,101,102,103,104,105,106,107,108,109,110,11 1,112,113,114,115,116,117,118,119,120,121,122,123,124,125,126,127,128 ,129,130,131,132,133,134,135,136,137,138,139,140,141,142,143,144,145, 146,147,148,149,150,151,152,153,154,155,156,157,158,159,160,161,162,1 63,164,165,166,167,168,169,170,171,172,173,174,175,176,177,178,179,18 0,181,182,183,184,185,186,187,188,189,190,191,192,193,194,195,196,197 ,198,199,200,201,202,203,204,205,206,207,208,209,210,211,212,213,214, 215,216,217,218,219,220,221,222,223,224,225,226,227,228,229,230,231,2 32,233,234,235,236,237,238,239,240,241,242,243,244,245,246,247,248,24 9,250,251,252,253,254,255,256,257,258,259,260,261,262,263,264,265,266 ,267,268,269,270,271$ :

*Manisha Gajbe*

*MVE PQV Content*

SCE ? System Content Engineering

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Message: 2 Date: Tue, 26 Jul 2016 11:17:05 -0400 From: Andreas Noack <[email protected]> To: [email protected] Subject: [mpich-discuss] Segfault with MPICH 3.2+Clang but not GCC Message-ID: <CAFKYB6mgy8bO7Mw05it4w78XDRoh70KxUu1epkZfv34=KqL=yQ@mail.gmail.com> Content-Type: text/plain; charset="utf-8"

On my El Capitan macbook I get a segfault when running the program below with more than a single process but only when MPICH has been compiled with Clang.

I don't get that good debug info but here is some of what I got

(lldb) c Process 61129 resuming Process 61129 stopped * thread #1: tid = 0x32c438, 0x00000003119d0432 libpmpi.12.dylib`MPID_Request_create + 244, queue = 'com.apple.main-thread', stop reason = EXC_BAD_ACCESS (code=EXC_I386_GPFLT) frame #0: 0x00000003119d0432 libpmpi.12.dylib`MPID_Request_create + 244 libpmpi.12.dylib`MPID_Request_create: -> 0x3119d0432 <+244>: movaps %xmm0, 0x230(%rax) 0x3119d0439 <+251>: movq $0x0, 0x240(%rax) 0x3119d0444 <+262>: movl %ecx, 0x210(%rax) 0x3119d044a <+268>: popq %rbp

My version of Clang is

Apple LLVM version 7.3.0 (clang-703.0.31) Target: x86_64-apple-darwin15.6.0 Thread model: posix InstalledDir: /Library/Developer/CommandLineTools/usr/bin

and the bug has been confirmed by my colleague who is running Linux and compiling with Clang 3.8. The program runs fine with OpenMPI+Clang.

#include <mpi.h> #include <stdio.h> #include <stdlib.h>

int main(int argc, char *argv[]) { MPI_Init(&argc, &argv);

MPI_Comm comm = MPI_COMM_WORLD; uint64_t *A, *C; int rnk;

MPI_Comm_rank(comm, &rnk); A = calloc(1, sizeof(uint64_t)); C = calloc(2, sizeof(uint64_t)); A[0] = rnk + 1;

MPI_Allgather(A, 1, MPI_UINT64_T, C, 1, MPI_UINT64_T, comm);

MPI_Finalize(); return 0; }

Best regards

Andreas Noack Postdoctoral Associate Computer Science and Artificial Intelligence Laboratory Massachusetts Institute of Technology -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.mpich.org/pipermail/discuss/attachments/20160726/27eff56 b/attachment-0001.html>

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Message: 3 Date: Tue, 26 Jul 2016 08:56:03 -0700 From: Jeff Hammond <[email protected]> To: MPICH <[email protected]> Subject: Re: [mpich-discuss] Segfault with MPICH 3.2+Clang but not GCC Message-ID: <CAGKz=uL+3P=d7W1TP9R9Teafip44aMnnk9c6nzuL_yDF_u+bsw@mail.gmail.com> Content-Type: text/plain; charset="utf-8"

I cannot reproduce this. I am using Darwin 15.5.0 instead of 15.6.0, but the compiler is identical. I am using MPICH Git master from June 29.

At this point, it is unclear to me if the bug is in MPICH or Clang.

Jeff

vsanthan-mobl1:BUGS jrhammon$ /opt/mpich/dev/clang/default/bin/mpichversion

MPICH Version: 3.2

MPICH Release date: unreleased development copy

MPICH Device: ch3:nemesis

MPICH configure: CC=clang CXX=clang++ FC=false F77=false --enable-cxx --disable-fortran --with-pm=hydra --prefix=/opt/mpich/dev/clang/default --enable-cxx --enable-wrapper-rpath --disable-static --enable-shared

MPICH CC: clang -O2

MPICH CXX: clang++ -O2

MPICH F77: false

MPICH FC: false

vsanthan-mobl1:BUGS jrhammon$ /opt/mpich/dev/clang/default/bin/mpicc -v

mpicc for MPICH version 3.2

Apple LLVM version 7.3.0 (clang-703.0.31)

Target: x86_64-apple-darwin15.5.0

Thread model: posix

InstalledDir: /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xct oolchain/usr/bin

clang: warning: argument unused during compilation: '-I /opt/mpich/dev/clang/default/include'

On Tue, Jul 26, 2016 at 8:17 AM, Andreas Noack <[email protected]

...

wrote:

...

On my El Capitan macbook I get a segfault when running the program below with more than a single process but only when MPICH has been compiled with Clang.

I don't get that good debug info but here is some of what I got

(lldb) c Process 61129 resuming Process 61129 stopped * thread #1: tid = 0x32c438, 0x00000003119d0432 libpmpi.12.dylib`MPID_Request_create + 244, queue = 'com.apple.main-thread', stop reason = EXC_BAD_ACCESS (code=EXC_I386_GPFLT) frame #0: 0x00000003119d0432 libpmpi.12.dylib`MPID_Request_create + 244 libpmpi.12.dylib`MPID_Request_create: -> 0x3119d0432 <+244>: movaps %xmm0, 0x230(%rax) 0x3119d0439 <+251>: movq $0x0, 0x240(%rax) 0x3119d0444 <+262>: movl %ecx, 0x210(%rax) 0x3119d044a <+268>: popq %rbp

My version of Clang is

Apple LLVM version 7.3.0 (clang-703.0.31) Target: x86_64-apple-darwin15.6.0 Thread model: posix InstalledDir: /Library/Developer/CommandLineTools/usr/bin

and the bug has been confirmed by my colleague who is running Linux and compiling with Clang 3.8. The program runs fine with OpenMPI+Clang.

#include <mpi.h> #include <stdio.h> #include <stdlib.h>

int main(int argc, char *argv[]) { MPI_Init(&argc, &argv);

MPI_Comm comm = MPI_COMM_WORLD; uint64_t *A, *C; int rnk;

MPI_Comm_rank(comm, &rnk); A = calloc(1, sizeof(uint64_t)); C = calloc(2, sizeof(uint64_t)); A[0] = rnk + 1;

MPI_Allgather(A, 1, MPI_UINT64_T, C, 1, MPI_UINT64_T, comm);

MPI_Finalize(); return 0; }

Best regards

Andreas Noack Postdoctoral Associate Computer Science and Artificial Intelligence Laboratory Massachusetts Institute of Technology

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Message: 4 Date: Tue, 26 Jul 2016 11:00:00 -0500 From: Rob Latham <[email protected]> To: <[email protected]> Subject: Re: [mpich-discuss] Segfault with MPICH 3.2+Clang but not GCC Message-ID: <[email protected]> Content-Type: text/plain; charset="windows-1252"; format=flowed

On 07/26/2016 10:17 AM, Andreas Noack wrote:

...

On my El Capitan macbook I get a segfault when running the program below with more than a single process but only when MPICH has been compiled with Clang.

I don't get that good debug info but here is some of what I got

valgrind is pretty good at sussing out these sorts of things:

==18132== Unaddressable byte(s) found during client check request ==18132== at 0x504D1D7: MPIR_Localcopy (helper_fns.c:84) ==18132== by 0x4EC8EA1: MPIR_Allgather_intra (allgather.c:169) ==18132== by 0x4ECA5EC: MPIR_Allgather (allgather.c:791) ==18132== by 0x4ECA7A4: MPIR_Allgather_impl (allgather.c:832) ==18132== by 0x4EC8B5C: MPID_Allgather (mpid_coll.h:61) ==18132== by 0x4ECB9F7: PMPI_Allgather (allgather.c:978) ==18132== by 0x4008F5: main (noack_segv.c:18) ==18132== Address 0x6f2f138 is 8 bytes after a block of size 16 alloc'd ==18132== at 0x4C2FB55: calloc (in /usr/lib/valgrind/vgpreload_memcheck-amd64-linux.so) ==18132== by 0x4008B0: main (noack_segv.c:15) ==18132== ==18132== Invalid write of size 8 ==18132== at 0x4C326CB: memcpy@@GLIBC_2.14 (in /usr/lib/valgrind/vgpreload_memcheck-amd64-linux.so) ==18132== by 0x504D31B: MPIR_Localcopy (helper_fns.c:84) ==18132== by 0x4EC8EA1: MPIR_Allgather_intra (allgather.c:169) ==18132== by 0x4ECA5EC: MPIR_Allgather (allgather.c:791) ==18132== by 0x4ECA7A4: MPIR_Allgather_impl (allgather.c:832) ==18132== by 0x4EC8B5C: MPID_Allgather (mpid_coll.h:61) ==18132== by 0x4ECB9F7: PMPI_Allgather (allgather.c:978) ==18132== by 0x4008F5: main (noack_segv.c:18) ==18132== Address 0x6f2f138 is 8 bytes after a block of size 16 alloc'd ==18132== at 0x4C2FB55: calloc (in /usr/lib/valgrind/vgpreload_memcheck-amd64-linux.so) ==18132== by 0x4008B0: main (noack_segv.c:15)

...

MPI_Comm_rank(comm, &rnk); A = calloc(1, sizeof(uint64_t)); C = calloc(2, sizeof(uint64_t)); A[0] = rnk + 1;

MPI_Allgather(A, 1, MPI_UINT64_T, C, 1, MPI_UINT64_T, comm);

Your 'buf count tuple' is ok for A: every process sends one uint64

your 'buf count tuple' is too small for C if there are any more than 2 proceses .

When you say "more than one"... do you mean 2?

==rob

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Message: 2 Date: Sun, 31 Jul 2016 08:20:05 +0200 From: Michele De Stefano <[email protected]> To: [email protected] Subject: [mpich-discuss] Broken links on the web site Message-ID: <CAJ7vBf03M2N7+fdNMBZaL+-2ux+FkUKSLHCXjb-PkSzsK2XERQ@mail.gmail.com> Content-Type: text/plain; charset="utf-8"

Dear MPICH staff,

in these days I was trying to download MPICH 3.2 and I've found this to be impossible. The links simply continue to redirect to the download page, but no download begins.

I've also tried to check the Installer Guide or other guides, but the links are broken too (error 404).

Can you please verify that your web site is working properly, please?

I suspect you have several links broken also in other pages.

Thanks. Best regards.

-- Michele De Stefano Linked In <http://it.linkedin.com/in/micheledestefano> mds-utils: a general purpose Open Source library <http://sourceforge.net/projects/mds-utils/> Personal Web Site <http://www.micheledestefano.altervista.org>