12%
28.03.2012
/O. But measuring CPU and memory usage are very important, maybe even at the detailed level. If the cluster is running MPI codes, then perhaps measuring the interconnect (x
for brief mode and X
for detailed mode
12%
08.05.2013
and many nodes, so why not use these cores to copy data? There is a project to do just this: dcp
is a simple code that uses MPI and a library called libcircle
to copy a file. This sounds exactly like what
12%
19.11.2014
"Top-like tools for admins" by Jeff Layton, ADMIN
, issue 23, pg. 86, http://www.admin-magazine.com/Archive/2014/23/Top-like-tools-for-admins
vmstat: http://en.wikipedia.org/wiki/Vmstat
vmstat man
12%
12.01.2012
not move the overall market forward.
For example, a user has many choices to express parallelism. They can use MPI on a cluster, OpenMP on an SMP, CUDA/OpenCL on a GPU-assisted CPU, or any combination
12%
05.12.2011
; and FAQs. With that, we will try to knock down some of the myths people hold about OpenMP when compared with various other models, such as MPI, Cilk, or AMP. Somehow, we are the favorite comparison for all
12%
05.11.2018
Machine=slurm-ctrl
13 #
14 SlurmUser=slurm
15 SlurmctldPort=6817
16 SlurmdPort=6818
17 AuthType=auth/munge
18 StateSaveLocation=/var/spool/slurm/ctld
19 SlurmdSpoolDir=/var/spool/slurm/d
20 SwitchType=switch/none
21 Mpi
12%
25.02.2016
is causing the core to become idle. The reasons for CPU utilization to drop could be from waiting on I/O (reads or writes) or because of network traffic from one node to another (possibly MPI communication
12%
20.06.2012
boot times.
Adding users to the compute nodes.
Adding a parallel shell tool, pdsh, to the master node.
Installing and configuring ntp
(a key component for running MPI jobs).
These added
12%
05.04.2013
is counterproductive. You are paying more and getting less. However, new workloads are being added to HPC all of the time that might be very different from the classic MPI applications in HPC and have different
12%
12.08.2015
in the name of better performance. Meanwhile, applications and tools have evolved to take advantage of the extra hardware, with applications using OpenMP to utilize the hardware on a single node or MPI to take
