Hi! We're two students from University of Skövde Sweden that studies network and systemadministration and right now are we working on a project to build and evaluate a Linux computing cluster. Our first approach is using OSCAR and it's working quite good right now. At the moment we've only got five computing nodes and one master node but later this week we're gonna add eight more nodes. The master node is a dual AMD 2400+ MP, 2GB RAM, with two nic, eth1 is connected to our lab network and eth0 is connected to a Summit4. The first node is exactly the same but with only one nic. The other four nodes are AMD 1900+, 1GB RAM. Everything is connected through the Summit. We run Fedora Core 3 and OSCAR 4.2.
Works great but when we submit jobs we can only run it on one CPU per node or only on the dual CPU node but on both CPUs. We've tried these different commands to submit our job (the script submit_pi below, nothing fancy but we're only testing so far): qsub -l nodes=5,ncpus=1,walltime=10:00 submit_pi Works but runs only on one CPU per node qsub -l nodes=5,ncpus=2,walltime=10:00 submit_pi Runs the job only on the dual CPU node but on both cpus qsub -l nodes=1:ppn=2+4:ppn=1,walltime=10:00 submit_pi Runs the job on the four singel CPU nodes #!/bin/bash #submit_pi #PBS -N test_job #PBS -o test_job_stdout.txt #PBS -e test_job_stderr.txt #PBS -q workq time pbsdsh /home/oscartst/pibench/pi_c50 #Nothing more to see here Tried a couple more but with same result or the job doesn't start at all. It's not crucial if we can't get it to work since we've only got one dual CPU computing node but it would be great if any of you could help us to get it to work. Regards Olof Mattsson ------------------------------------------------------- This SF.Net email is sponsored by xPML, a groundbreaking scripting language that extends applications into web and mobile media. Attend the live webcast and join the prime developer group breaking into this new coding territory! http://sel.as-us.falkag.net/sel?cmd=lnk&kid0944&bid$1720&dat1642 _______________________________________________ Oscar-users mailing list [email protected] https://lists.sourceforge.net/lists/listinfo/oscar-users
