68%
19.05.2014
with my /home/layton
directory on my local system (host = desktop
). I also access an HPC system that has its own /home/jlayton
directory (the login node is login1
). On the HPC system I only keep some
55%
06.05.2014
to big data, casino operators can create granular customer profiles. The Flamingo Hotel of Caesars Entertainment in Las Vegas alone employs 200 big data analysts. Specialized analytics solutions
54%
12.02.2014
or sar+ksar). Others gather metrics for clusters (e.g., Ganglia or Cacti), and some come with plotting tools built-in using the RRDtool database. Some tools are specifically for performance profiling
59%
15.01.2014
toward improving application performance (profiling). However, how do you profile across a cluster, and how do you make it part of a “job”? I think this is a developing area of monitoring, and one
56%
03.07.2013
or processes are used, performance does not improve (wall clock time does not change).
To better understand how Amdahl’s Law works, consider a theoretical application that is 80% parallelizable (20% serial
60%
30.01.2013
(Listing 3).
Listing 3: Configuring Lmod init Scripts
[root@test1 profile.d]# ln -s /usr/local/lmod/lmod/init/profile /etc/profile.d/modules.sh
[root@test1 profile.d]# ln -s /usr
60%
16.01.2013
/yum.conf
# . /etc/profile.d/modules.sh
# module load openmpi-x86_64
# ompi_info | grep -i grid
MCA ras: gridengine (MCA v2.0, API v2.0, Component v1.5.4)
# echo "module load openmpi-x86_64" >> /etc/profile
59%
10.10.2012
openlava on a Scientific Linux 6.2 system using the RHEL 6 binaries. If you read the Quickstart guide on the openlava site, you will learn that this binary is installed into /opt/openlava-2.0
57%
10.09.2012
, in the first article I wrote about Environment Modules, I said to copy the modules.bash
and modules.sh
files to the directory /etc/profile.d
. However, to limit the ability of an ordinary user to bypass
100%
21.08.2012
Listing 6: Torque Job Script
[laytonjb@test1 TEST]$ more pbs-test_001
1 #!/bin/bash
2 ###
3 ### Sample script for running MPI example for computing PI (Fortran 90 code)
4 ###
5 ### Jeff Layton