Since you are getting the same errors with C as you are with Java, this is an
issue with C, not the Java bindings. However, in the most recent output, you
are using ./a.out to run the test. Did you use mpirun to run the test in Java
or C?
The command should be something along the lines of:
mpirun -np 2 java TestMpiRmaCompareAndSwap
mpirun -np 2 ./a.out
Also, are you compiling with the ompi wrappers? Should be:
mpijavac TestMpiRmaCompareAndSwap.java
mpicc compare_and_swap.c
In the mean time, I will try to reproduce this on a similar system.
-Nathan
--
Nathaniel Graham
HPC-DES
Los Alamos National Laboratory
________________________________
From: users <users-boun...@lists.open-mpi.org> on behalf of Gundram Leifert
<gundram.leif...@uni-rostock.de>
Sent: Tuesday, September 13, 2016 12:46 AM
To: users@lists.open-mpi.org
Subject: Re: [OMPI users] Java-OpenMPI returns with SIGSEGV
Hey,
it seams to be a problem of ompi 2.x. Also the c-version 2.0.1 returns produces
this output:
(the same bulid by sources or the release 2.0.1)
[mw314@node108 mpi_test]$ ./a.out
[node108:2949] *** An error occurred in MPI_Compare_and_swap
[node108:2949] *** reported by process [1649420396,0]
[node108:2949] *** on win rdma window 3
[node108:2949] *** MPI_ERR_RMA_RANGE: invalid RMA address range
[node108:2949] *** MPI_ERRORS_ARE_FATAL (processes in this win will now abort,
[node108:2949] *** and potentially your MPI job)
But the test works for 1.8.x! In fact our cluster does not have shared-memory -
so it has to use the wrapper to default methods.
Gundram
On 09/07/2016 06:49 PM, Graham, Nathaniel Richard wrote:
Hello Gundram,
It looks like the test that is failing is TestMpiRmaCompareAndSwap.java. Is
that the one that is crashing? If so, could you try to run the C test from:
http://git.mpich.org/mpich.git/blob/c77631474f072e86c9fe761c1328c3d4cb8cc4a5:/test/mpi/rma/compare_and_swap.c#l1
There are a couple of header files you will need for that test, but they are in
the same repo as the test (up a few folders and in an include folder).
This should let us know whether its an issue related to Java or not.
If it is another test, let me know and Ill see if I can get you the C version
(most or all of the Java tests are translations from the C test).
-Nathan
--
Nathaniel Graham
HPC-DES
Los Alamos National Laboratory
________________________________
From: users
<users-boun...@lists.open-mpi.org><mailto:users-boun...@lists.open-mpi.org> on
behalf of Gundram Leifert
<gundram.leif...@uni-rostock.de><mailto:gundram.leif...@uni-rostock.de>
Sent: Wednesday, September 7, 2016 9:23 AM
To: users@lists.open-mpi.org<mailto:users@lists.open-mpi.org>
Subject: Re: [OMPI users] Java-OpenMPI returns with SIGSEGV
Hello,
I still have the same errors on our cluster - even one more. Maybe the new one
helps us to find a solution.
I have this error if I run "make_onesided" of the ompi-java-test repo.
CReqops and TestMpiRmaCompareAndSwap report (pretty deterministically - in
all my 30 runs) this error:
[titan01:5134] *** An error occurred in MPI_Compare_and_swap
[titan01:5134] *** reported by process [2392850433,1]
[titan01:5134] *** on win rdma window 3
[titan01:5134] *** MPI_ERR_RMA_RANGE: invalid RMA address range
[titan01:5134] *** MPI_ERRORS_ARE_FATAL (processes in this win will now abort,
[titan01:5134] *** and potentially your MPI job)
[titan01.service:05128] 1 more process has sent help message
help-mpi-errors.txt / mpi_errors_are_fatal
[titan01.service:05128] Set MCA parameter "orte_base_help_aggregate" to 0 to
see all help / error messages
Sometimes I also have the SIGSEGV error.
System:
compiler: gcc/5.2.0
java: jdk1.8.0_102
kernelmodule: mlx4_core mlx4_en mlx4_ib
Linux version 3.10.0-327.13.1.el7.x86_64
(buil...@kbuilder.dev.centos.org<mailto:buil...@kbuilder.dev.centos.org>) (gcc
version 4.8.3 20140911 (Red Hat 4.8.3-9) (GCC) ) #1 SMP
Open MPI v2.0.1, package: Open MPI Distribution, ident: 2.0.1, repo rev:
v2.0.0-257-gee86e07, Sep 02, 2016
inifiband
openib: OpenSM 3.3.19
limits:
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) 256554
max locked memory (kbytes, -l) unlimited
max memory size (kbytes, -m) unlimited
open files (-n) 100000
pipe size (512 bytes, -p) 8
POSIX message queues (bytes, -q) 819200
real-time priority (-r) 0
stack size (kbytes, -s) unlimited
cpu time (seconds, -t) unlimited
max user processes (-u) 4096
virtual memory (kbytes, -v) unlimited
file locks (-x) unlimited
Thanks, Gundram
On 07/12/2016 11:08 AM, Gundram Leifert wrote:
Hello Gilley, Howard,
I configured without disable dlopen - same error.
I test these classes on another cluster and: IT WORKS!
So it is a problem of the cluster configuration. Thank you all very much for
all your help! When the admin can solve the problem, i will let you know, what
he had changed.
Cheers Gundram
On 07/08/2016 04:19 PM, Howard Pritchard wrote:
Hi Gundram
Could you configure without the disable dlopen option and retry?
Howard
Am Freitag, 8. Juli 2016 schrieb Gilles Gouaillardet :
the JVM sets its own signal handlers, and it is important openmpi dones not
override them.
this is what previously happened with PSM (infinipath) but this has been solved
since.
you might be linking with a third party library that hijacks signal handlers
and cause the crash
(which would explain why I cannot reproduce the issue)
the master branch has a revamped memory patcher (compared to v2.x or v1.10),
and that could have some bad interactions with the JVM, so you might also give
v2.x a try
Cheers,
Gilles
On Friday, July 8, 2016, Gundram Leifert
<gundram.leif...@uni-rostock.de<mailto:gundram.leif...@uni-rostock.de>> wrote:
You made the best of it... thanks a lot!
Whithout MPI it runs.
Just adding MPI.init() causes the crash!
maybe I installed something wrong...
install newest automake, autoconf, m4, libtoolize in right order and same prefix
check out ompi,
autogen
configure with same prefix, pointing to the same jdk, I later use
make
make install
I will test some different configurations of ./configure...
On 07/08/2016 01:40 PM, Gilles Gouaillardet wrote:
I am running out of ideas ...
what if you do not run within slurm ?
what if you do not use '-cp executor.jar'
or what if you configure without --disable-dlopen --disable-mca-dso ?
if you
mpirun -np 1 ...
then MPI_Bcast and MPI_Barrier are basically no-op, so it is really weird your
program is still crashing. an other test is to comment out MPI_Bcast and
MPI_Barrier and try again with -np 1
Cheers,
Gilles
On Friday, July 8, 2016, Gundram Leifert
<gundram.leif...@uni-rostock.de<mailto:gundram.leif...@uni-rostock.de>> wrote:
In any cases the same error.
this is my code:
salloc -n 3
export IPATH_NO_BACKTRACE
ulimit -s 10240
mpirun -np 3 java -cp executor.jar
de.uros.citlab.executor.test.TestSendBigFiles2
also for 1 or two cores, the process crashes.
On 07/08/2016 12:32 PM, Gilles Gouaillardet wrote:
you can try
export IPATH_NO_BACKTRACE
before invoking mpirun (that should not be needed though)
an other test is to
ulimit -s 10240
before invoking mpirun.
btw, do you use mpirun or srun ?
can you reproduce the crash with 1 or 2 tasks ?
Cheers,
Gilles
On Friday, July 8, 2016, Gundram Leifert <gundram.leif...@uni-rostock.de> wrote:
Hello,
configure:
./configure --enable-mpi-java --with-jdk-dir=/home/gl069/bin/jdk1.7.0_25
--disable-dlopen --disable-mca-dso
1 node with 3 cores. I use SLURM to allocate one node. I changed --mem, but it
has no effect.
salloc -n 3
core file size (blocks, -c) 0
data seg size (kbytes, -d) unlimited
scheduling priority (-e) 0
file size (blocks, -f) unlimited
pending signals (-i) 256564
max locked memory (kbytes, -l) unlimited
max memory size (kbytes, -m) unlimited
open files (-n) 100000
pipe size (512 bytes, -p) 8
POSIX message queues (bytes, -q) 819200
real-time priority (-r) 0
stack size (kbytes, -s) unlimited
cpu time (seconds, -t) unlimited
max user processes (-u) 4096
virtual memory (kbytes, -v) unlimited
file locks (-x) unlimited
uname -a
Linux titan01.service 3.10.0-327.13.1.el7.x86_64 #1 SMP Thu Mar 31 16:04:38 UTC
2016 x86_64 x86_64 x86_64 GNU/Linux
cat /etc/system-release
CentOS Linux release 7.2.1511 (Core)
what else do you need?
Cheers, Gundram
On 07/07/2016 10:05 AM, Gilles Gouaillardet wrote:
Gundram,
can you please provide more information on your environment :
- configure command line
- OS
- memory available
- ulimit -a
- number of nodes
- number of tasks used
- interconnect used (if any)
- batch manager (if any)
Cheers,
Gilles
On 7/7/2016 4:17 PM, Gundram Leifert wrote:
Hello Gilles,
I tried you code and it crashes after 3-15 iterations (see (1)). It is always
the same error (only the "94" varies).
Meanwhile I think Java and MPI use the same memory because when I delete the
hash-call, the program runs sometimes more than 9k iterations.
When it crashes, there are different lines (see (2) and (3)). The crashes also
occurs on rank 0.
##### (1)#####
# Problematic frame:
# J 94 C2 de.uros.citlab.executor.test.TestSendBigFiles2.hashcode([BI)I (42
bytes) @ 0x00002b03242dc9c4 [0x00002b03242dc860+0x164]
#####(2)#####
# Problematic frame:
# V [libjvm.so+0x68d0f6] JavaCallWrapper::JavaCallWrapper(methodHandle,
Handle, JavaValue*, Thread*)+0xb6
#####(3)#####
# Problematic frame:
# V [libjvm.so+0x4183bf]
ThreadInVMfromNative::ThreadInVMfromNative(JavaThread*)+0x4f
Any more idea?
On 07/07/2016 03:00 AM, Gilles Gouaillardet wrote:
Gundram,
fwiw, i cannot reproduce the issue on my box
- centos 7
- java version "1.8.0_71"
Java(TM) SE Runtime Environment (build 1.8.0_71-b15)
Java HotSpot(TM) 64-Bit Server VM (build 25.71-b15, mixed mode)
i noticed on non zero rank saveMem is allocated at each iteration.
ideally, the garbage collector can take care of that and this should not be an
issue.
would you mind giving the attached file a try ?
Cheers,
Gilles
On 7/7/2016 7:41 AM, Gilles Gouaillardet wrote:
I will have a look at it today
how did you configure OpenMPI ?
Cheers,
Gilles
On Thursday, July 7, 2016, Gundram Leifert
<gundram.leif...@uni-rostock.de<mailto:gundram.leif...@uni-rostock.de>> wrote:
Hello Giles,
thank you for your hints! I did 3 changes, unfortunately the same error occures:
update ompi:
commit ae8444682f0a7aa158caea08800542ce9874455e
Author: Ralph Castain <r...@open-mpi.org><mailto:r...@open-mpi.org>
Date: Tue Jul 5 20:07:16 2016 -0700
update java:
java version "1.8.0_92"
Java(TM) SE Runtime Environment (build 1.8.0_92-b14)
Java HotSpot(TM) Server VM (build 25.92-b14, mixed mode)
delete hashcode-lines.
Now I get this error message - to 100%, after different number of iterations
(15-300):
0/ 3:length = 100000000
0/ 3:bcast length done (length = 100000000)
1/ 3:bcast length done (length = 100000000)
2/ 3:bcast length done (length = 100000000)
#
# A fatal error has been detected by the Java Runtime Environment:
#
# SIGSEGV (0xb) at pc=0x00002b3d022fcd24, pid=16578, tid=0x00002b3d29716700
#
# JRE version: Java(TM) SE Runtime Environment (8.0_92-b14) (build 1.8.0_92-b14)
# Java VM: Java HotSpot(TM) 64-Bit Server VM (25.92-b14 mixed mode linux-amd64
compressed oops)
# Problematic frame:
# V [libjvm.so+0x414d24] ciEnv::get_field_by_index(ciInstanceKlass*, int)+0x94
#
# Failed to write core dump. Core dumps have been disabled. To enable core
dumping, try "ulimit -c unlimited" before starting Java again
#
# An error report file with more information is saved as:
# /home/gl069/ompi/bin/executor/hs_err_pid16578.log
#
# Compiler replay data is saved as:
# /home/gl069/ompi/bin/executor/replay_pid16578.log
#
# If you would like to submit a bug report, please visit:
# http://bugreport.java.com/bugreport/crash.jsp
#
[titan01:16578] *** Process received signal ***
[titan01:16578] Signal: Aborted (6)
[titan01:16578] Signal code: (-6)
[titan01:16578] [ 0] /usr/lib64/libpthread.so.0(+0xf100)[0x2b3d01500100]
[titan01:16578] [ 1] /usr/lib64/libc.so.6(gsignal+0x37)[0x2b3d01b5c5f7]
[titan01:16578] [ 2] /usr/lib64/libc.so.6(abort+0x148)[0x2b3d01b5dce8]
[titan01:16578] [ 3]
/home/gl069/bin/jdk1.8.0_92/jre/lib/amd64/server/libjvm.so(+0x91e605)[0x2b3d02806605]
[titan01:16578] [ 4]
/home/gl069/bin/jdk1.8.0_92/jre/lib/amd64/server/libjvm.so(+0xabda63)[0x2b3d029a5a63]
[titan01:16578] [ 5]
/home/gl069/bin/jdk1.8.0_92/jre/lib/amd64/server/libjvm.so(JVM_handle_linux_signal+0x14f)[0x2b3d0280be2f]
[titan01:16578] [ 6]
/home/gl069/bin/jdk1.8.0_92/jre/lib/amd64/server/libjvm.so(+0x91a5c3)[0x2b3d028025c3]
[titan01:16578] [ 7] /usr/lib64/libc.so.6(+0x35670)[0x2b3d01b5c670]
[titan01:16578] [ 8]
/home/gl069/bin/jdk1.8.0_92/jre/lib/amd64/server/libjvm.so(+0x414d24)[0x2b3d022fcd24]
[titan01:16578] [ 9]
/home/gl069/bin/jdk1.8.0_92/jre/lib/amd64/server/libjvm.so(+0x43c5ae)[0x2b3d023245ae]
[titan01:16578] [10]
/home/gl069/bin/jdk1.8.0_92/jre/lib/amd64/server/libjvm.so(+0x369ade)[0x2b3d02251ade]
[titan01:16578] [11]
/home/gl069/bin/jdk1.8.0_92/jre/lib/amd64/server/libjvm.so(+0x36eda0)[0x2b3d02256da0]
[titan01:16578] [12]
/home/gl069/bin/jdk1.8.0_92/jre/lib/amd64/server/libjvm.so(+0x37091b)[0x2b3d0225891b]
[titan01:16578] [13]
/home/gl069/bin/jdk1.8.0_92/jre/lib/amd64/server/libjvm.so(+0x3712b6)[0x2b3d022592b6]
[titan01:16578] [14]
/home/gl069/bin/jdk1.8.0_92/jre/lib/amd64/server/libjvm.so(+0x36d2cf)[0x2b3d022552cf]
[titan01:16578] [15]
/home/gl069/bin/jdk1.8.0_92/jre/lib/amd64/server/libjvm.so(+0x36e412)[0x2b3d02256412]
[titan01:16578] [16]
/home/gl069/bin/jdk1.8.0_92/jre/lib/amd64/server/libjvm.so(+0x36ed8d)[0x2b3d02256d8d]
[titan01:16578] [17]
/home/gl069/bin/jdk1.8.0_92/jre/lib/amd64/server/libjvm.so(+0x37091b)[0x2b3d0225891b]
[titan01:16578] [18]
/home/gl069/bin/jdk1.8.0_92/jre/lib/amd64/server/libjvm.so(+0x3712b6)[0x2b3d022592b6]
[titan01:16578] [19]
/home/gl069/bin/jdk1.8.0_92/jre/lib/amd64/server/libjvm.so(+0x36d2cf)[0x2b3d022552cf]
[titan01:16578] [20]
/home/gl069/bin/jdk1.8.0_92/jre/lib/amd64/server/libjvm.so(+0x36e412)[0x2b3d02256412]
[titan01:16578] [21]
/home/gl069/bin/jdk1.8.0_92/jre/lib/amd64/server/libjvm.so(+0x36ed8d)[0x2b3d02256d8d]
[titan01:16578] [22]
/home/gl069/bin/jdk1.8.0_92/jre/lib/amd64/server/libjvm.so(+0x3708c2)[0x2b3d022588c2]
[titan01:16578] [23]
/home/gl069/bin/jdk1.8.0_92/jre/lib/amd64/server/libjvm.so(+0x3724e7)[0x2b3d0225a4e7]
[titan01:16578] [24]
/home/gl069/bin/jdk1.8.0_92/jre/lib/amd64/server/libjvm.so(+0x37a817)[0x2b3d02262817]
[titan01:16578] [25]
/home/gl069/bin/jdk1.8.0_92/jre/lib/amd64/server/libjvm.so(+0x37a92f)[0x2b3d0226292f]
[titan01:16578] [26]
/home/gl069/bin/jdk1.8.0_92/jre/lib/amd64/server/libjvm.so(+0x358edb)[0x2b3d02240edb]
[titan01:16578] [27]
/home/gl069/bin/jdk1.8.0_92/jre/lib/amd64/server/libjvm.so(+0x35929e)[0x2b3d0224129e]
[titan01:16578] [28]
/home/gl069/bin/jdk1.8.0_92/jre/lib/amd64/server/libjvm.so(+0x3593ce)[0x2b3d022413ce]
[titan01:16578] [29]
/home/gl069/bin/jdk1.8.0_92/jre/lib/amd64/server/libjvm.so(+0x35973e)[0x2b3d0224173e]
[titan01:16578] *** End of error message ***
-------------------------------------------------------
Primary job terminated normally, but 1 process returned
a non-zero exit code. Per user-direction, the job has been aborted.
-------------------------------------------------------
--------------------------------------------------------------------------
mpirun noticed that process rank 2 with PID 0 on node titan01 exited on signal
6 (Aborted).
--------------------------------------------------------------------------
I don't know if it is a problem of java or ompi - but the last years, java
worked with no problems on my machine...
Thank you for your tips in advance!
Gundram
On 07/06/2016 03:10 PM, Gilles Gouaillardet wrote:
Note a race condition in MPI_Init has been fixed yesterday in the master.
can you please update your OpenMPI and try again ?
hopefully the hang will disappear.
Can you reproduce the crash with a simpler (and ideally deterministic) version
of your program.
the crash occurs in hashcode, and this makes little sense to me. can you also
update your jdk ?
Cheers,
Gilles
On Wednesday, July 6, 2016, Gundram Leifert
<gundram.leif...@uni-rostock.de<mailto:gundram.leif...@uni-rostock.de>> wrote:
Hello Jason,
thanks for your response! I thing it is another problem. I try to send 100MB
bytes. So there are not many tries (between 10 and 30). I realized that the
execution of this code can result 3 different errors:
1. most often the posted error message occures.
2. in <10% the cases i have a live lock. I can see 3 java-processes, one with
200% and two with 100% processor utilization. After ~15 minutes without new
system outputs this error occurs.
[thread 47499823949568 also had an error]
# A fatal error has been detected by the Java Runtime Environment:
#
# Internal Error (safepoint.cpp:317), pid=24256, tid=47500347131648
# guarantee(PageArmed == 0) failed: invariant
#
# JRE version: 7.0_25-b15
# Java VM: Java HotSpot(TM) 64-Bit Server VM (23.25-b01 mixed mode linux-amd64
compressed oops)
# Failed to write core dump. Core dumps have been disabled. To enable core
dumping, try "ulimit -c unlimited" before starting Java again
#
# An error report file with more information is saved as:
# /home/gl069/ompi/bin/executor/hs_err_pid24256.log
#
# If you would like to submit a bug report, please visit:
# http://bugreport.sun.com/bugreport/crash.jsp
#
[titan01:24256] *** Process received signal ***
[titan01:24256] Signal: Aborted (6)
[titan01:24256] Signal code: (-6)
[titan01:24256] [ 0] /usr/lib64/libpthread.so.0(+0xf100)[0x2b336a324100]
[titan01:24256] [ 1] /usr/lib64/libc.so.6(gsignal+0x37)[0x2b336a9815f7]
[titan01:24256] [ 2] /usr/lib64/libc.so.6(abort+0x148)[0x2b336a982ce8]
[titan01:24256] [ 3]
/home/gl069/bin/jdk1.7.0_25/jre/lib/amd64/server/libjvm.so(+0x742ac5)[0x2b336b44fac5]
[titan01:24256] [ 4]
/home/gl069/bin/jdk1.7.0_25/jre/lib/amd64/server/libjvm.so(+0x8a2137)[0x2b336b5af137]
[titan01:24256] [ 5]
/home/gl069/bin/jdk1.7.0_25/jre/lib/amd64/server/libjvm.so(+0x407262)[0x2b336b114262]
[titan01:24256] [ 6]
/home/gl069/bin/jdk1.7.0_25/jre/lib/amd64/server/libjvm.so(+0x7c6c34)[0x2b336b4d3c34]
[titan01:24256] [ 7]
/home/gl069/bin/jdk1.7.0_25/jre/lib/amd64/server/libjvm.so(+0x8a9c17)[0x2b336b5b6c17]
[titan01:24256] [ 8]
/home/gl069/bin/jdk1.7.0_25/jre/lib/amd64/server/libjvm.so(+0x8aa2c0)[0x2b336b5b72c0]
[titan01:24256] [ 9]
/home/gl069/bin/jdk1.7.0_25/jre/lib/amd64/server/libjvm.so(+0x744270)[0x2b336b451270]
[titan01:24256] [10] /usr/lib64/libpthread.so.0(+0x7dc5)[0x2b336a31cdc5]
[titan01:24256] [11] /usr/lib64/libc.so.6(clone+0x6d)[0x2b336aa4228d]
[titan01:24256] *** End of error message ***
-------------------------------------------------------
Primary job terminated normally, but 1 process returned
a non-zero exit code. Per user-direction, the job has been aborted.
-------------------------------------------------------
--------------------------------------------------------------------------
mpirun noticed that process rank 0 with PID 0 on node titan01 exited on signal
6 (Aborted).
--------------------------------------------------------------------------
3. in <10% the cases i have a dead lock while MPI.init. This stays for more
than 15 minutes without returning with an error message...
Can I enable some debug-flags to see what happens on C / OpenMPI side?
Thanks in advance for your help!
Gundram Leifert
On 07/05/2016 06:05 PM, Jason Maldonis wrote:
After reading your thread looks like it may be related to an issue I had a few
weeks ago (I'm a novice though). Maybe my thread will be of help:
https://www.open-mpi.org/community/lists/users/2016/06/29425.php
When you say "After a specific number of repetitions the process either hangs
up or returns with a SIGSEGV." does you mean that a single call hangs, or that
at some point during the for loop a call hangs? If you mean the latter, then it
might relate to my issue. Otherwise my thread probably won't be helpful.
Jason Maldonis
Research Assistant of Professor Paul Voyles
Materials Science Grad Student
University of Wisconsin, Madison
1509 University Ave, Rm M142
Madison, WI 53706
maldo...@wisc.edu<mailto:maldo...@wisc.edu>
608-295-5532
On Tue, Jul 5, 2016 at 9:58 AM, Gundram Leifert
<gundram.leif...@uni-rostock.de<mailto:gundram.leif...@uni-rostock.de>> wrote:
Hello,
I try to send many byte-arrays via broadcast. After a specific number of
repetitions the process either hangs up or returns with a SIGSEGV. Does any one
can help me solving the problem:
########## The code:
import java.util.Random;
import mpi.*;
public class TestSendBigFiles {
public static void log(String msg) {
try {
System.err.println(String.format("%2d/%2d:%s",
MPI.COMM_WORLD.getRank(), MPI.COMM_WORLD.getSize(), msg));
} catch (MPIException ex) {
System.err.println(String.format("%2s/%2s:%s", "?", "?", msg));
}
}
private static int hashcode(byte[] bytearray) {
if (bytearray == null) {
return 0;
}
int hash = 39;
for (int i = 0; i < bytearray.length; i++) {
byte b = bytearray[i];
hash = hash * 7 + (int) b;
}
return hash;
}
public static void main(String args[]) throws MPIException {
log("start main");
MPI.Init(args);
try {
log("initialized done");
byte[] saveMem = new byte[100000000];
MPI.COMM_WORLD.barrier();
Random r = new Random();
r.nextBytes(saveMem);
if (MPI.COMM_WORLD.getRank() == 0) {
for (int i = 0; i < 1000; i++) {
saveMem[r.nextInt(saveMem.length)]++;
log("i = " + i);
int[] lengthData = new int[]{saveMem.length};
log("object hash = " + hashcode(saveMem));
log("length = " + lengthData[0]);
MPI.COMM_WORLD.bcast(lengthData, 1,
MPI.INT<http://MPI.INT>, 0);
log("bcast length done (length = " + lengthData[0] + ")");
MPI.COMM_WORLD.barrier();
MPI.COMM_WORLD.bcast(saveMem, lengthData[0], MPI.BYTE, 0);
log("bcast data done");
MPI.COMM_WORLD.barrier();
}
MPI.COMM_WORLD.bcast(new int[]{0}, 1, MPI.INT<http://MPI.INT>,
0);
} else {
while (true) {
int[] lengthData = new int[1];
MPI.COMM_WORLD.bcast(lengthData, 1,
MPI.INT<http://MPI.INT>, 0);
log("bcast length done (length = " + lengthData[0] + ")");
if (lengthData[0] == 0) {
break;
}
MPI.COMM_WORLD.barrier();
saveMem = new byte[lengthData[0]];
MPI.COMM_WORLD.bcast(saveMem, saveMem.length, MPI.BYTE, 0);
log("bcast data done");
MPI.COMM_WORLD.barrier();
log("object hash = " + hashcode(saveMem));
}
}
MPI.COMM_WORLD.barrier();
} catch (MPIException ex) {
System.out.println("caugth error." + ex);
log(ex.getMessage());
} catch (RuntimeException ex) {
System.out.println("caugth error." + ex);
log(ex.getMessage());
} finally {
MPI.Finalize();
}
}
}
############ The Error (if it does not just hang up):
#
# A fatal error has been detected by the Java Runtime Environment:
#
# SIGSEGV (0xb) at pc=0x00002b7e9c86e3a1, pid=1172, tid=47822674495232
#
#
# A fatal error has been detected by the Java Runtime Environment:
# JRE version: 7.0_25-b15
# Java VM: Java HotSpot(TM) 64-Bit Server VM (23.25-b01 mixed mode linux-amd64
compressed oops)
# Problematic frame:
# #
# SIGSEGV (0xb) at pc=0x00002af69c0693a1, pid=1173, tid=47238546896640
#
# JRE version: 7.0_25-b15
J de.uros.citlab.executor.test.TestSendBigFiles.hashcode([B)I
#
# Failed to write core dump. Core dumps have been disabled. To enable core
dumping, try "ulimit -c unlimited" before starting Java again
#
# Java VM: Java HotSpot(TM) 64-Bit Server VM (23.25-b01 mixed mode linux-amd64
compressed oops)
# Problematic frame:
# J de.uros.citlab.executor.test.TestSendBigFiles.hashcode([B)I
#
# Failed to write core dump. Core dumps have been disabled. To enable core
dumping, try "ulimit -c unlimited" before starting Java again
#
# An error report file with more information is saved as:
# /home/gl069/ompi/bin/executor/hs_err_pid1172.log
# An error report file with more information is saved as:
# /home/gl069/ompi/bin/executor/hs_err_pid1173.log
#
# If you would like to submit a bug report, please visit:
# http://bugreport.sun.com/bugreport/crash.jsp
#
#
# If you would like to submit a bug report, please visit:
# http://bugreport.sun.com/bugreport/crash.jsp
#
[titan01:01172] *** Process received signal ***
[titan01:01172] Signal: Aborted (6)
[titan01:01172] Signal code: (-6)
[titan01:01173] *** Process received signal ***
[titan01:01173] Signal: Aborted (6)
[titan01:01173] Signal code: (-6)
[titan01:01172] [ 0] /usr/lib64/libpthread.so.0(+0xf100)[0x2b7e9596a100]
[titan01:01172] [ 1] /usr/lib64/libc.so.6(gsignal+0x37)[0x2b7e95fc75f7]
[titan01:01172] [ 2] /usr/lib64/libc.so.6(abort+0x148)[0x2b7e95fc8ce8]
[titan01:01172] [ 3]
/home/gl069/bin/jdk1.7.0_25/jre/lib/amd64/server/libjvm.so(+0x742ac5)[0x2b7e96a95ac5]
[titan01:01172] [ 4]
/home/gl069/bin/jdk1.7.0_25/jre/lib/amd64/server/libjvm.so(+0x8a2137)[0x2b7e96bf5137]
[titan01:01172] [ 5]
/home/gl069/bin/jdk1.7.0_25/jre/lib/amd64/server/libjvm.so(JVM_handle_linux_signal+0x140)[0x2b7e96a995e0]
[titan01:01172] [ 6] [titan01:01173] [ 0]
/usr/lib64/libpthread.so.0(+0xf100)[0x2af694ded100]
[titan01:01173] [ 1] /usr/lib64/libc.so.6(+0x35670)[0x2b7e95fc7670]
[titan01:01172] [ 7] [0x2b7e9c86e3a1]
[titan01:01172] *** End of error message ***
/usr/lib64/libc.so.6(gsignal+0x37)[0x2af69544a5f7]
[titan01:01173] [ 2] /usr/lib64/libc.so.6(abort+0x148)[0x2af69544bce8]
[titan01:01173] [ 3]
/home/gl069/bin/jdk1.7.0_25/jre/lib/amd64/server/libjvm.so(+0x742ac5)[0x2af695f18ac5]
[titan01:01173] [ 4]
/home/gl069/bin/jdk1.7.0_25/jre/lib/amd64/server/libjvm.so(+0x8a2137)[0x2af696078137]
[titan01:01173] [ 5]
/home/gl069/bin/jdk1.7.0_25/jre/lib/amd64/server/libjvm.so(JVM_handle_linux_signal+0x140)[0x2af695f1c5e0]
[titan01:01173] [ 6] /usr/lib64/libc.so.6(+0x35670)[0x2af69544a670]
[titan01:01173] [ 7] [0x2af69c0693a1]
[titan01:01173] *** End of error message ***
-------------------------------------------------------
Primary job terminated normally, but 1 process returned
a non-zero exit code. Per user-direction, the job has been aborted.
-------------------------------------------------------
--------------------------------------------------------------------------
mpirun noticed that process rank 1 with PID 0 on node titan01 exited on signal
6 (Aborted).
########CONFIGURATION:
I used the ompi master sources from github:
commit 267821f0dd405b5f4370017a287d9a49f92e734a
Author: Gilles Gouaillardet <gil...@rist.or.jp<mailto:gil...@rist.or.jp>>
Date: Tue Jul 5 13:47:50 2016 +0900
./configure --enable-mpi-java --with-jdk-dir=/home/gl069/bin/jdk1.7.0_25
--disable-dlopen --disable-mca-dso
Thanks a lot for your help!
Gundram
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