Hi Gilles,
at first glance, I suspect String.valueOf(buffer) buffer is 256 chars, but the message you really want to print is only the first num chars.
Yes, you are right. I changed the method to String.valueOf (buffer, 0, num) and now everything works fine. Thank you very much for your help. Kind regards Siegmar
I will double check tomorrow, in the mean time, feel free to revamp the test and see if it works better Cheers, Gilles On Tuesday, September 8, 2015, Siegmar Gross <siegmar.gr...@informatik.hs-fulda.de <mailto:siegmar.gr...@informatik.hs-fulda.de>> wrote: Hi Gilles, can you post your test program ? Attached. did you try to run the very same test with ompi configure'd without --enable-heterogeneous ? No. can you reproduce the crash with the v2.x series ? No, I tried, but wasn't successful :-)). Kind regards Siegmar Cheers, Gilles On Tuesday, September 8, 2015, Siegmar Gross <siegmar.gr...@informatik.hs-fulda.de <mailto:siegmar.gr...@informatik.hs-fulda.de>> wrote: Hi, yesterday I have built openmpi-v1.10.0-5-ge0b85ea on my machines (Solaris 10 Sparc, Solaris 10 x86_64, and openSUSE Linux 12.1 x86_64) with gcc-5.1.0 and Sun C 5.13. Sometimes I have the following problem when I run a small Java program in my heterogeneous environment. The problem arises even if I only use my Linux box. It doesn't matter if I use my cc- or gcc-version of Open MPI. Sometimes I must run the program 10 times before the error shows up. I couldn't reproduce the error with openmpi-v2.x-dev-325-g8ae44ea. linpc1 fd1026 102 mpiexec -np 2 java MsgSendRecvMain Java HotSpot(TM) 64-Bit Server VM warning: You have loaded library /usr/local/openmpi-1.10.1_64_cc/lib64/libmpi_java.so.1.2.0 which might have disabled stack guard. The VM will try to fix the stack guard now. It's highly recommended that you fix the library with 'execstack -c <libfile>', or link it with '-z noexecstack'. Java HotSpot(TM) 64-Bit Server VM warning: You have loaded library /usr/local/openmpi-1.10.1_64_cc/lib64/libmpi_java.so.1.2.0 which might have disabled stack guard. The VM will try to fix the stack guard now. It's highly recommended that you fix the library with 'execstack -c <libfile>', or link it with '-z noexecstack'. Now 1 process sends its greetings. Greetings from process 1: message tag: 3 message length: 6 message: linpc1 linpc1 fd1026 102 mpiexec -np 4 java MsgSendRecvMain ... (above message) Now 3 processes are sending greetings. Greetings from process 3: message tag: 3 message length: 6 message: linpc1??????????????????????????????????????????????????????????????????|}~ ?(?4???? ?????? ?????? ?????? ????? ??? 9:!"? Greetings from process 2: message tag: 3 Kind regards Siegmar _______________________________________________ users mailing list us...@open-mpi.org Subscription: http://www.open-mpi.org/mailman/listinfo.cgi/users Link to this post: http://www.open-mpi.org/community/lists/users/2015/09/27545.php _______________________________________________ users mailing list us...@open-mpi.org Subscription: http://www.open-mpi.org/mailman/listinfo.cgi/users Link to this post: http://www.open-mpi.org/community/lists/users/2015/09/27549.php
-- ######################################################################## # # # Hochschule Fulda University of Applied Sciences # # FB Angewandte Informatik Department of Applied Computer Science # # # # Prof. Dr. Siegmar Gross Tel.: +49 (0)661 9640 - 333 # # Fax: +49 (0)661 9640 - 349 # # Leipziger Str. 123 WWW: http://www.hs-fulda.de/~gross # # D-36037 Fulda Mail: siegmar.gr...@informatik.hs-fulda.de # # # # # # IT-Sicherheit: http://www.hs-fulda.de/it-sicherheit # # # ########################################################################
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