Hi Howard,
I use 64bit JVM. The problem is not in the code, because I am still getting the same error when I run the Hello.java from examples folder. Any other suggestion? Ibrahim List-Post: users@lists.open-mpi.org Date: Tue, 19 Jan 2016 09:48:24 -0700 From: hpprit...@gmail.com To: us...@open-mpi.org Subject: Re: [OMPI users] How to allocate more memory to java OpenMPI HI Ibrahim, Are you using a 32bit or 64bit JVM? I don't think this is an Open MPI issue, but likely something owing to your app or your java setup.You may want to checkout http://javaeesupportpatterns.blogspot.com/2012/09/outofmemoryerror-unable-to-create-new.html If you'd like to post the java code to the list, I can try it out on some of the servers I use. Howard 2016-01-19 8:03 GMT-07:00 Ibrahim Ikhlawi <ibrahim_...@hotmail.com>: Hallo, I'm working with java OpenMPI on a server with 64GB memory. But when I run the java class I can only run it on until 15 processes (with this command: mpirun -np 15 java Multiplikation). Although there is 64GB memory, only about 3 GB will be used(with top command can I see that, the first two lines are below). When I run more than 15 processes I get this error: Error occurred during initialization of VM java.lang.OutOfMemoryError: unable to create new native thread But I want to run it on more than 15 processes and use more than 3 GB. In Addition, after searching in google I have tried to run it with this command: mpirun -np 20 java -Xmx2096M -Xms1048M Multiplikation but I still get the same error. My question: How can I allocate java more memory, so that I run my program with more than 15 processes and more than 3GB memory? thanks in advance Ibrahim PS: It may help, these are the first two lines from the top command: PID PRI VIRT RES SHR S CPU% MEM% 23255 20 0 20.7G 103M 11916 S 2.0 0.2 0:52.14 java 23559 20 0 20.7G 33772 11916 S 1.0 0.1 0:50.82 java _______________________________________________ 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/2016/01/28301.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/2016/01/28302.php
