cluster testing

[lalecarbon]

hi all

i want testing my cluster by 4 nodes and then testing it by 8 node; and see difference between its work.

i testing blender on it and render animation; but its not working on all nodes and its running in fronted node.
i running blender by some script such as:

"blender copied in tmp folder; i want 11 node in my cluster and 22 core"

mpirun -np 10 --hostfile /home/user/tmp/bhosts blender
mpiexec -np 10 --npernode /home/user/tmp/bhosts blender
and etc.

when i running it; 11 blender running on fronted node.

please help me all member; i want testing my cluster and see difference between its nodes.

thanks a lot.

vahid

[Michael Creel]

Does blender use MPI?

[lalecarbon]

thanks a lot dear Michael Creel for reply;

i  dont know exactly that blender use MPI; but i think its dont use MPI. please see it: http://www.blender.org/education-help/quickstart/

by your answer, its clear that pelican HPC only use MPI library.

now what is your idea for testing my cluster and saw difference between 4 nodes and 11 nodes?

i use bottom script and its show that all nodes is under computing(by ganglia) ; but its dont solve in more than 4 hours:
http://users.abo.fi/mats/PP2008/programs/MPI/cpi_mc.c

for show my idea; see http://lalecarbon.persiangig.com/cluster/IMG_20111116_141105.jpg

its have 5 node and i want run a parallel program on cluster; now see

http://lalecarbon.persiangig.com/cluster/IMG_20111116_142141.jpg

its have 12 node.

now i want testing a program and my cluster show difference between it.( for example: 5 node taken me a time and 12 node taken me a time less than 5 node)


i waiting for your answer and all members.
thanks a lot man for your answer.
vahid

[Michael Creel]

If you open up a terminal on the frontend node and 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), then you'll see some benchmark style results. Is that more or less what you need?

[lalecarbon]

thanks a lot dear admin, its work on WMWARE in two virtual machine; ( i testing it on real systems 3 day later)

now i have 2 question:

1:

can i question about ( octave -q --eval "kernel_example(10000, true, false)" ) specialy kernel_example(10000, true, false). what does this code on octave? i read your tutorial  about octave (by search in google) , but i do not can understood your mean :((
another topic you say change bhosts and front of nodes IP, you accord slots in it. please help me about this tutorial. can i dose this work for blender? because i interesting to rendering animation on my cluster.

 please help me about (kernel_example(10000, true, false)).

2:

do you have another code such as kernel_example that showing me difference between clusters?
my mean is that show graphical result.

thanks very much Michael Creel for quick answer.
i want extend this project and wide research.

excuse me for my english.

[Michael Creel]

Please check out the PelicanHPC tutorial, if I recall correctly it mentions some other examples. I don't think you'll be able to use blender, as it's not a parallel application, as far as I know. About the Octave scripts, sorry, but I don't offer support for those,  I'm only providing information about how to get a PelicanHPC cluster running, how to use it is up to the user. Too little time for more than that, I'm afraid.

[lalecarbon]

thanks very much Michael Creel.