Do not see the parameters of the nodes

[NVV5]

Hello everybody!
I am success to start my first cluster Pelican 2.6 x64bit with Q9550 2,8 Ghz RAM 6 Gb, E6580 3,0 Ghz RAM 4 Gb and E8400 3 Ghz RAM 4 Gb

HPC Test ----------------------------------------
Quantity of processors = 3
Calculation time = 1.40 seconds
Cluster speed = 1284 MFLOPS
-------------------------------------------------
Cluster node N00 speed = 428 MFLOPS
Cluster node N01 speed = 428 MFLOPS
Cluster node N02 speed = 428 MFLOPS
-------------------------------------------------
I would like to use cluster for playing whith chessengine (e.g. critter-12-64bit) on Websaite playchess.com. Critter is started with command: mpirun -np 3 ./critter-12-64bit  and go depth 21.

user@pel1:~$ mpirun -n 3 ./critter-12-64bit
Critter Chess v1.2 64-bit
By Richard Vida, Slovakia

Critter Chess v1.2 64-bit
By Richard Vida, Slovakia

Critter Chess v1.2 64-bit
By Richard Vida, Slovakia

Hash table:   4194304 entries of 16 bytes =   64 MB total
Hash table:   4194304 entries of 16 bytes =   64 MB total
Hash table:   4194304 entries of 16 bytes =   64 MB total
Eval cache:     32768 entries of  8 bytes =  256 KB total
Pawn hash :     65536 entries of 32 bytes =    2 MB total

4 cpu(s) detected

Opening book "book.cbk" not found

Eval cache:     32768 entries of  8 bytes =  256 KB total
Pawn hash :     65536 entries of 32 bytes =    2 MB total

4 cpu(s) detected

Opening book "book.cbk" not found

Eval cache:     32768 entries of  8 bytes =  256 KB total
Pawn hash :     65536 entries of 32 bytes =    2 MB total

4 cpu(s) detected

Opening book "book.cbk" not found

go depth 21
 2/ 2  00:00        67       0  +0.36 Nf3 d5
 3/ 3  00:00       188       0  +0.50 Nf3 d5 Nc3 Nf6 d3
 4/ 4  00:00       449       0  +0.05 Nf3 Nf6 Nc3 Nc6
 5/ 5  00:00       875  875000  +0.06 Nf3 Nf6 Nc3 Nc6 h3
 6/ 6  00:00      1850  462500  +0.05 Nf3 Nf6 Nc3 Nc6 e4 d5 Bd3

It is Linux server of chess engine and he starts when I promt command: wish … -cmdArgs.
System monitor ksysguard is switched on and I see the following:
“All processes Tree” > “CPU” 1st- 99%  2nd-99%  3rd-99% 4th-99% 5th-99%

When  I direct the cursor at line CPU the tablet jumps out where is written :
Process status : sleeping – Process is waiting for something to happen.
User CPU usage: 0%
System CPU usage: 0%
Number of children: 66
Total User CPU usage:98%
Total System CPU usage:0,75%
Total CPU usage: 99,25%
CPU time spent running as user:0,0 seconds
CPU time spent running in kernel:0,6 seconds

“System Load” CPU-1 100% CPU-2 100% CPU-3 100% CPU-4 100%
Memory 1,4 Gb/5,8Gb
No swap space available.

Question 1. Why don't I see the parameters of the nodes E6580 and E 8400 and Critter?
Question 2. How can I use all RAM 4+6+4=14 Gb?
Question 3. It is probably necessary to put additional packages of cmdArgs?

Best wishes
Vitaly.

[Michael Creel]

Sorry, but what you see happening on the nodes depends on how the application works, and I don't know anything about this application. This program is designed to run on a cluster?

[NVV5]

To tell the truth I want to understand it.
The author of the program Richard Vida  in interview has told one year ago.

Q: Will Critter support multiprocessing in the future?
A: Yes, the next version will be MP capable. If everything goes well it should be ready sometime around April/May this year (2011).
I have only indirect indicators of acknowledgement that the program install on cluster. Speed of calculations kn/s increases on 200-250 units to proportionally addition of nodes.  Data undertook from playchess.com

However Thanks for the answer.

[Michael Creel]

My guess is that this program will possibly use multiple cores on a single machine, and this would probably happen automatically. I think that it probably uses, or will use, OpenMP. It doesn't sound like it will use MPI, which is quite different. Thus, I doubt that this program will run on a cluster.

[NVV5]

Would you mind giving me the syntax of  the commands for viewing of a condition of nods for example   mstat host, tid.
And the command      help [command],tid     will deduce the list of all commands and their short description.

[Michael Creel]

There are a lot of ways to do that, my favorite is here:
http://pelicanhpc.788819.n4.nabble.com/How-can-i-find-out-which-are-processes-are-being-sent-to-which-node-td3034955.html

[NVV5]

Thanks I will try to study processes.