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
