Re: [Beowulf] preemptive kernel and preemptive schedulers

2007-06-22 Thread Mark Hahn
RT Linux (I am a newbie to RT=Linux) is based on the concept of Preemptive kernels where the jobs are temporally preempted say a FIFO scheduler implemented at the kernel level. when people say "RT Linux", they normally mean various flavors of hard-RT hacks (not meant in an entirely disparaging

Re: [Beowulf] Setting up NFS directory mount on client

2007-06-22 Thread Robert G. Brown
On Fri, 22 Jun 2007, A Lenzo wrote: I can't figure out how to do that. I edited the /etc/fstab file with the following line: mytestsrv:/ /home nfs4 auto,rw,nodev,sync,_netdev,proto=tcp,retry=10,rsiz e=32768,wsize=32768,hard,intr 0 0 but then the files I want appear in: /home/home/barney As

Re: [Beowulf] Setting up NFS directory mount on client

2007-06-22 Thread Mark Hahn
I can't figure out how to do that. I edited the /etc/fstab file with the following line: mytestsrv:/ /home nfs4 auto,rw,nodev,sync,_netdev,proto=tcp,retry=10,rsiz e=32768,wsize=32768,hard,intr 0 0 mytestsrv appears to be exporting its whole filesystem, which is a bit unusual. normally, a home

[Beowulf] hi!

2007-06-22 Thread Leonardo Ismael
Hi! I'm a student from Buenos Aires, Argentina. I want to built a Beowulf system as a Project inside my university. I'll make some questions via e-mail soon... - LLama Gratis a cualquier PC del Mundo. Llamadas a fijos y móviles desde 1 céntimo por

[Beowulf] preemptive kernel and preemptive schedulers

2007-06-22 Thread Balamurugan.R
Dear all, I would be happy if the community can show some light on my understanding on the following: RT Linux (I am a newbie to RT=Linux) is based on the concept of Preemptive kernels where the jobs are temporally preempted say a FIFO scheduler implemented at the kernel level. I know that

Re: [Beowulf] question for licensed software users

2007-06-22 Thread Thomas H Dr Pierce
Dear Joe Landman, The only issues that I have seen with Flexlm involve using a server that has with multiple ethernet cards. The lmhostid is the "default" mac address, but making changes to the server (new OS, changing network cards ) has changed the "default" eth0 definition at times. I ha

Re: [Beowulf] question for licensed software users

2007-06-22 Thread Geoff Galitz
Flex has generally worked out for us. We have run into problems when some vendors wrap up the flex startup/shutdown sequence to tightly with their application. We would have situations where flex was starting up with the wrong PATH environment. Flex would start but not function properly in thi

[Beowulf] Setting up NFS directory mount on client

2007-06-22 Thread A Lenzo
Hello all, First, thank you to everyone who provided me help on my last problem. I set up a small test cluster in order to learn NFS. I have a server and two nodes on my test network. Running Fedora Core 6. I made an account on the server called barney. What I want to be able to do is log into a

Re: [Beowulf] any gp-gpu clusters?

2007-06-22 Thread Greg Lindahl
On Fri, Jun 22, 2007 at 11:34:46AM -0400, Jeffrey B. Layton wrote: > On the other hand CUDA is a real compiler with added features to > make coding for GPUs easier. It's based on the GPLed bits from PathScale's compilers. It's really interesting to see what you can do with this compiler, it's now

Re: [Beowulf] any gp-gpu clusters?

2007-06-22 Thread Eric Shook
Hi Jeff, I registered to see article and I must admit it was an excellent read. It provided a nice high-level overview of GPU programming and introduced libraries / languages that I was previously not aware of. I will be looking into these options as well. Thank you for posting the link. E

Re: [Beowulf] any gp-gpu clusters?

2007-06-22 Thread Jeffrey B. Layton
I have no idea if this will help anyone, but here is an article that might help get started or at least provide some links: http://www.linux-mag.com/launchpad/business-class-hpc/main/3533 WARNING: You have to register to read the article (sorry about that). From what I understand, CTM is really

Re: [Beowulf] any gp-gpu clusters?

2007-06-22 Thread Eric Shook
Hi Mark, I am a part of new research group that is considering adding gp-gpu technologies to our cluster, unfortunately we have the same questions which you raised. Which platform (ctm or cuda), development tools, configuration, etc. If we decided to add gpu technologies it would most likel

Re: [Beowulf] question for licensed software users

2007-06-22 Thread Fred Youhanaie
Joe Landman wrote: flexlm server suddenly and inexplicably switching its lmhostid. After a reboot. Renders all licenses unusable. I remember seeing something like this a few years ago, I think that relates to having multiple license servers, and they decide among themselves who does the

Re: [Beowulf] question for licensed software users

2007-06-22 Thread Joe Landman
Toon Knapen wrote: What kind of problems: developing using FlexLm or deploying an app which needs to talk to a flexlm-server ? flexlm server suddenly and inexplicably switching its lmhostid. After a reboot. Renders all licenses unusable. This happened recently at two customers sites. On

Re: [Beowulf] question for licensed software users

2007-06-22 Thread Toon Knapen
What kind of problems: developing using FlexLm or deploying an app which needs to talk to a flexlm-server ? A few years ago we had an interesting problem with flexlm on windows 32bit: The flexlm library was loading plenty of other system libraries at a base-address near 1.4Gb. This implied tha