Thanks Michael,
One thing I fogot to tell you is this problem (long time to compile C codes(LAM, or something else)) does not happen
on the head node.
So, it can try to optimize for ia64 or something else on the client node but it does not seem to do on the head node.
Please, can you try to test with your machines?
[EMAIL PROTECTED] lam]# cat hello.c #include <stdio.h> int main() { printf("Hello, world\n"); return 0; } [EMAIL PROTECTED] lam]# time gcc hello.c -o hello
real 0m5.635s
user 0m0.060s
sys 0m0.020s
[EMAIL PROTECTED] lam]# ssh oscar_server
Warning: Permanently added 'oscar_server' (RSA) to the list of known hosts.
Last login: Mon Dec 20 16:44:30 2004 from loudsl01.4.0.6.117.iglou.com
[EMAIL PROTECTED] root]# cat hello.c
#include <stdio.h>
int main() {
printf("Hello, world\n");
return 0;
}
[EMAIL PROTECTED] root]# time gcc hello.c -o helloreal 0m0.120s user 0m0.060s sys 0m0.040s [EMAIL PROTECTED] root]#
Regards,
DongInn.
Michael Edwards wrote:
Did you check to see if it is trying to optimize for ia64 or something odd since I think that is what RHEL is mainly used on? Or is it just a mater of compiling it on a 64 bit machine that makes it 32/64 bit code?
I suppose I should figure these types of things out sincee I have some opterons sitting here waiting for me to get some setup time.
On Mon, 20 Dec 2004 22:58:09 -0500, DongInn Kim <[EMAIL PROTECTED]> wrote:
Hi all,
I have a testing problem of MPICH and LAM/MPI on RHEL AS 3 (*ia32*)*, not IA64*
This is my cluster environment for testing OSCAR 4.0b6r2801.
- OS : RHEL (Red Hat Enterprise Linux) AS (Advanced Server) release 3 (Taroon Update 3). - Kernel : 2.4.21-20.EL - NFS : nfs-utils-1.0.6-31EL - MySQL server : rebuilt from the mysql src rpm ftp://ftp.redhat.com/pub/redhat/linux/enterprise/3/en/os/i386/SRPMS/ - /etc/exports on my head node /home 192.168.0.6/255.255.255.0(async,rw,no_root_squash) - /home of /etc/fstab on the client node nfs_oscar:/home /home nfs rw 0 0 - rpcinfo [EMAIL PROTECTED] root]# rpcinfo -p | grep nfs 100003 2 udp 2049 nfs 100003 3 udp 2049 nfs 100003 2 tcp 2049 nfs 100003 3 tcp 2049 nfs [EMAIL PROTECTED] root]#
I have two testing failures (MPICH and LAM/MPI) at step 8 "Test Cluster Setup". The superficial reason that I can figure out is passing the time limit (30 sec).
However, there is no reason for MPICH and LAM to have this long compile time and I checked to see if it takes this much time to compile lam codes on the client nodes. Surprisingly, it takes more than a miniute to compile the cpi, which is about a 100 line C program. I checked if this kind of thing happens in the other normal C programs. And yes, it does. So, I think that the problem can be NFS.
Please, can anyone, who has the RHEL AS 3 (IA32), test the new SVN version of OSCAR or oscar-4.0br2801 posted by Thomas and check to see if you have the same problem whether or not you have the exactly same environment as I mentioned above? http://www.csm.ornl.gov/~naughton/oscar/testing/
As far as I have tested, RH9 and FC2 have never this problem. Several persons confirmed that there is no this problem on RH9 and FC2. I have two persons with RHEL AS 3 (IA64) but not IA32 and they don't have this problem.
I appreciate if you can test and share some idea.
Regards,
DongInn.
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