Packages?

[Aman]

Hii,
First of all a huge applause for the great work :) I am seriously in love with cluster computing now. Although I just established my first real cluster with 2 processors.

I am looking for packages, that I can use to measure/notice the improvement in the computation. All the packages may not be parallel. Great confusion . Any help highly appreciated.


Regards
Aman Gautam

[Michael Creel]

The last couple of threads on testing the cluster and how to run in parallel mention some possibilities. Do you need something other than that?

[Aman]

Hii Michael. I am able to set up a  virtualcluster with 3 nodes. But when I try the command

mpirun -np 3 octave -q --eval "kernel_example(2000,true,false)"

I can see the improvement in speed when I use larger number of nodes (than 2). But when I look at the compute nodes, I see no activity there using htop.

I am pretty confused about what's wrong with it.
Any guidance is highly appreciated

Regards
Aman Gautam

[Michael Creel]

You need to type

mpirun -np X --hostfile /home/user/tmp/bhosts octave -q --eval "kernel_example(10000, true, false)"

where X is the number of nodes you want to use (X>=2). See "man mpirun" for an explanation of the hostfile option. That should get you some activity on the nodes.