Guy Tel-Zur's Blog

June 28th, 14:00-16:00 - Grid-HPC Work Group meeting Location: IGT Offices, Maskit 4, 5th Floor, Hertzliya Agenda: 14:00-14:15: OPENING - Avner & Guy 14:15-14:50: DEBUGGING AND OPTIMIZING APPLICATIONS FOR MULTICORE MPP ARCHITECTURES Speaker: Jacques Philouze, Vice President Sales & Marketing, Allinea Abstract: As two, four and potentially eight-core processors become the norm, the defacto HPC architecture is tending towards large clusters of modest 8-16 core shared-memory servers, potentially with co-processing devices (eg. GPGPUs, FPGAs, Clearspeed). Programming these machines optimally presents a number of challenges, and applications that use a mixed programming models are now becoming commonplace. In this presentation we will discuss the challenges facing today's HPC application developers, and the need for simple tools that can address mixed programming models. We will present new multicore features of Allinea's Distributed Debugging Tool (DDT) and Op...

Very simple: type "df" to find the dvd file system name, then: dd if=/dev/dvd_fs of=mydvd.iso That's it!

VMware on Fedora-7 (F7) I found the following reference useful when I installed VMware: How To Install VMware Server On A Fedora 7 Desktop | HowtoForge - Linux Howtos and Tutorials However, there still was a problem: After defining a new virtual machine I got this error message: "Unable to change virtual machine power state. The "/usr/lib/vmware/bin/vmware-vmx" process did not start properly...." Any ideas what to do next???? ================================ Later addition: I think this is because the latest VMware is not ready yet for the advanced F7 and its latest kernel. What it did was to fall back to CentOS5.

1) In order to enable services like NFS mount and ypbind on the diskless clients edit the rc.local file in the image tree on the server like this: [ root@grid02]# more /diskless/centos44_diskless_ver_03/root/etc/rc.local #!/bin/sh # # This script will be executed *after* all the other init scripts. # You can put your own initialization stuff in here if you don't # want to do the full Sys V style init stuff. touch /var/lock/subsys/local #--------added manually by Guy, 30/5/2007: mount -t nfs 192.168.1.2:/home /home ypdomainname WRITE_HERE_THE_DOMAIN_NAME ypbind ypset 192.168.1.2 2) In order to document the installation procedure, here is the files & directory structure on the server which is relevant for the pxe-boot & tftp stage: [root@grid02 ~]# ls /tftpboot/ linux-install [root@grid02 ~]# ls /tftpboot/linux-install/ centos44_diskless_ver_01 centos44_diskless_ver_03 pxelinux.0 centos44_diskless_ver_02 msgs pxelinux.cfg [root@grid02 ~]# ls /tftpboot...

[telzur@cs-grid4 tests]$ voms-proxy-init --voms dteam Enter GRID pass phrase: Your identity: /C=IL/O=IUCC/OU=BGU/CN=Guy Tel-Zur Cannot find file or dir: /home/telzur/.glite/vomses Creating temporary proxy ........................................................ Done Contacting lcg-voms.cern.ch:15004 [/C=CH/O=CERN/OU=GRID/CN=host/lcg-voms.cern.ch] "dteam" Done Creating proxy .......................................................... Done Your proxy is valid until Wed May 23 05:27:43 2007 [telzur@cs-grid4 tests]$ voms-proxy-info subject : /C=IL/O=IUCC/OU=BGU/CN=Guy Tel-Zur/CN=proxy issuer : /C=IL/O=IUCC/OU=BGU/CN=Guy Tel-Zur identity : /C=IL/O=IUCC/OU=BGU/CN=Guy Tel-Zur type : proxy strength : 512 bits path : /tmp/x509up_u33335 timeleft : 11:59:55 [telzur@cs-grid4 tests]$ glite-job-submit hello2.jdl Selected Virtual Organisation name (from proxy certificate extension): dteam Connecting to host g01.phy.bg.ac.yu, port 7772 Lo...

I followed the instruction from: http://kvm.qumranet.com/kvmwiki/Debian on my DELL420 laptop running Ubuntu 7.04. Here is a screen shot showing Windows-XP and CentOS5 running as guests Operating Systems (click on the image to enlarge):

I used this great link for installing my wireless card on my Dell 420 using Ubuntu 7.04 Dapper Drake on a Dell Latitude D420 Excellent job. Thanks