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Questions tagged [hpc]

43 questions
10
votes
2 answers

Wait for one or all LSF jobs to complete

With Platform LSF, is there a command that will wait for either a specific job or all my submitted jobs to finish before returning? In other words, I am looking for the LSF equivalent of the wait built-in command in bash.
Vebjorn Ljosa
  • 2,297
9
votes
5 answers

Why does a Xeon processor cost much more than a similar Core i7 part?

I want to know why the price of a Xeon CPU and a similar Core i7 CPU is so different. The CPU clock is more or less the same. I want to know this because I want to have an understanding of what kind of CPU is more suitable for me. I do heavy…
MOON
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9
votes
2 answers

Makefile fails to install file correctly, installing HPL

I started installing HPL a while ago and had a related question. I've been following along with this guide from Intel. I figure this warrants a whole new one. When I try to make the archive, the output seems fine until the end, where it gives an…
zr00
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8
votes
4 answers

How do different Linux distributions handle multiple cores and multi-threading?

I realize that by asking this question I have already labeled myself as "unprepared" for high-performance workstations, but whatever, you have to start somewhere! I would like to know how different linux distributions handle multiple cores and…
J Mac
  • 1,320
5
votes
1 answer

Do writes and reads contend with each other for an SSD?

I have a disk I/O intensive application where I am reading and writing a lot concurrently. For a spinning disk, it makes sense that there is contention because the pointer has to move around a lot but SSDs are supposed to be more resilient to this…
Niteya Shah
  • 153
4
votes
3 answers

Building an improvised 'supercomputer' by connecting a number of used PCs in a LAN

I am in ongoing development of a simple but processor intensive computer program that I use for scientific research. It would be really helpful to have more processing speed. Right now I'm running Mac OS X 10.5.7 on a 2 GHz Intel Core Duo and my…
Matt Munson
  • 153
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4
votes
0 answers

Installing new rolls on existing Rocks Cluster

I am on a supercomputer research team at a small university. We can't seem to find where the CUDA roll is installed on our Rocks cluster, and we're pretty sure it was never properly installed. We do have the iso of the roll. In searching on how to…
zr00
  • 331
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3
votes
2 answers

Advantages of nVidia Tesla vs Xeon Phi

This maybe only theoretical, but are there any advantages of using one or another in terms of: ISA energy efficency Solution with using QPI looks better for me. Are there any advantages of using PCIe-P2P Tesla against QPI Xeon Phi?
user3313119
  • 41
2
votes
2 answers

Why is Xeon processor suited for HPC?

Among the different specs for Xeon, available here, http://ark.intel.com/compare/87720,84679, which aspects makes it relevant for HPC ? The processor base frequency is less than for Core i7. Why Xeon did not achieve same performance, and why is it…
kiriloff
  • 223
2
votes
0 answers

Windows Azure HPC Scheduler Architecture

So far I've found very little information on the scheduling policy, resource management policy of Azure HPC Scheduler. I would appreciate any kind of information regarding some of these questions: What scheduling policy does a Head Node use to…
Churianov Roman
  • 21
2
votes
0 answers

Sharing storage on Linux and Solaris

I'm looking for a solution in order to share a san mounted volume between several hosts running on Linux (RHEL) and/or Solaris (Sparc). Note that I basically need to share a set of directories containing large binary files that are accessed in…
devlearn
  • 121
2
votes
1 answer

What technologies came to the PC world from High Performance Computing?

Recently I came to think about the technologies that supercomputers gave to the modern PCs. I found out that the instruction pipelining appeared in one of the first CDC machines and parallelism was certainly a super-computer hallmark of all the…
Massimiliano
  • 121
2
votes
2 answers

Which edition microsoft 2008 server should I use?

I have a MSDN (Accademic alliance) subscription, and I have a rack mountable box, (I can't remember whats in it anymore but it has 2 CPUs and 1 GB of DDR 2 ram. I remember when I was given it (12 months ago) is was one of something called a Delta or…
Frames Catherine White
  • 1,000
1
vote
1 answer

Mirror with backup of changed files

we have some largeish storage requirements (genomic data) for which we need to buy some archival space (write once, read rarely, files remain easily accessible, each user should have access to their own "archive" folder). An "easy" and relatively…
Yannick Wurm
  • 111
1
vote
1 answer

Setting include paths in LSF-bsub

I am running a big job on a HPC. But the installed programs for the job are old versions and I have the new versions in my home directory. I can log in to any node, export the path to the new versions using export…
WYSIWYG
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