Questions tagged [hpc]
The hpc tag has no usage guidance.
36
questions
5
votes
1
answer
69
views
Do writes and reads contend with each other for an SSD? [closed]
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 ...
- 153
0
votes
0
answers
21
views
Server specification does not support RAM speed, but can faster RAM still be used of the same type? [duplicate]
Intel® Compute Module HNS2600TPR shall support DDR4-1600/1866/2133/2400 speeds as written on the specification. [1]
However, 2400 RAM is out-of-stock everywhere. The best we can buy is 2666. For ...
- 150
0
votes
0
answers
151
views
How do I set up an X-window display on a remote headless system that doesn't have X installed?
I have an application I want to run on HPC (using a BASH script) that needs an X display, or else it errors out. Since this is an HPC application, the client itself does not have an installation of X ...
- 173
0
votes
1
answer
70
views
passwd: Authentication token manipulation error using ssh and public key
I'm using ssh and public key (saved in my local computer) to connect to a HPC cluster as follows:
$ ssh -i ~/narvi_key/xenial-narvi-key alijani@narvi.tut.fi
Enter passphrase for key '/home/xenial/...
- 103
1
vote
0
answers
443
views
How to make a host file in SLURM with $SLURM_JOB_NODELIST
I have access to a HPC with 40 cores on each node. I have a batch file to run a total of 35 codes which are in separate folders. Each code is an open mp code which requires 4 cores each. so how do I ...
0
votes
1
answer
512
views
Getting error while using Rsync on Cygwin
I am using rsync, to transfer data to HPC cluster, using Cygwin for windows 7. I type the following command to transfer a folder from my computer to the HPC remote server.
rsync -rzv /cygdrive/C/...
- 113
1
vote
1
answer
663
views
slurmd: Invalid job credential
I'm having some problems with a test configuration of Slurm on my laptop. I'm trying to run four slurmd instances on one machine, which is also the same machine as slurmctld runs on. I have a local ...
- 11
1
vote
0
answers
35
views
HPC Visualization node GPU choice
On most HPC Visualization node, we find nvidia tesla cards. P100 come to mind.
I'm not sure to follow why. Nvidia Tesla cards are designed for computing according to nividia documentation, not for ...
- 918
0
votes
1
answer
1k
views
mpirun tcp_peer_send_blocking: send() to socket X failed: Broken pipe (32)
I am using a HPC composed by 4 machines (master, slave1, slave2, slave3 and slave4)
I try to run a script on a HPC structure :
mpirun -report-uri - -host master,slave1,slave2,slave3,slave4 --map-by ...
0
votes
0
answers
106
views
How to install WINE in a linux server using clone method from GitHub?
I tried to install by downloading from linux terminal and running the commands
$ cd wine-3.0-rc1
$ ./configure --enable-win64
$ make
# make install
and gives always error and fail to proceed. Since ...
- 101
0
votes
0
answers
17
views
Prefer more resources on Windows HPC?
If I specify a min/max core or socket counts, is there a way to tell HPC to prefer to use more resources? i.e. if I have the below job/task, can I tell HPC to prefer more sockets?
<Job Version="3....
- 155
0
votes
1
answer
152
views
Where should I save the .exe file in Windows HPC Cluster head?
I am working on HPC Pack cluster. I want to use the HPC Pack Job Manager to run my tasks.
Where should I save the .exe file?
Task
- 1
0
votes
1
answer
50
views
What does the acronym CMC refer to in this context?
I am doing a research project on SGI High Performance Computers, specifically the SGI ICE XA platform. In the datasheet (found here), I came across this image.
I am wondering what the acronym CMC ...
- 113
1
vote
1
answer
746
views
SLURM configuration: cons_res with CR_Core either cannot allocate resource or jobs end up in CG status
I am new to SLURM. I am trying to configure slurm in a new cluster.
I have 4 nodes each has 14 cores. I wanted to share nodes in a way that every core can run independently (i.e., node01 can have 14 ...
- 11
0
votes
1
answer
1k
views
Is it possible to use a Xeon Phi in a Mac running OS X Yosemite?
A colleague of ours is willing to lend our lab a Xeon Phi (2012 model, the one with passive cooling) that he has no use for. The only machine we could physically put this beast into is a Mac Pro (2011 ...
- 203
2
votes
2
answers
422
views
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 ...
- 213
1
vote
1
answer
99
views
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 ...
- 111
3
votes
2
answers
431
views
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 ...
- 41
1
vote
1
answer
984
views
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 ...
- 201
0
votes
1
answer
3k
views
How much memory is being used on the gpu by each PID?
How do I know how much memory on the GPU is being used by each process, CUDA compiled code using 1 processor, accessing 1 of 2 M2090 Tesla cards available on a 16 core node on an HPC?
~/code_dev/...
- 3
0
votes
2
answers
994
views
Mathematica benchmark on two different system
I have two system one has a Xeon E5-1650 CPU, 24GB of RAM, and a 7200rpm hard drive. The other system which is a Lenovo G510 laptop, has a core i7-4700MQ CPU, 4GB of RAM, and 5400rmp hard drive.
The ...
- 384
9
votes
5
answers
23k
views
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 ...
- 384
0
votes
1
answer
80
views
Solution for HPC with Matlab and Linux
I have the following problem.
I want to install Matlab as root on a remote computer with graphical user interface installed. I've a campus license that can be installed on 4 different computers (or ...
- 111
2
votes
0
answers
58
views
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:
...
2
votes
0
answers
232
views
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 ...
- 121
0
votes
1
answer
454
views
Kerrighed cluster does not use all nodes when running OpenMP
I've been given access to a recently built cluster that uses Kerrighed. I'm the first user of this cluster, so setup and configuration problems may be a possibility. I'm also totally new to ...
- 101
1
vote
4
answers
3k
views
Creating a home server cluster for data analysis
I've seen a couple of questions on here that are similar to what I'm thinking, but not quite. So, I figured I'd ask and see what falls out.
Basically, I have 2 or 3 old, slower-ish laptops laying ...
- 125
4
votes
3
answers
738
views
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 ...
- 153
0
votes
1
answer
187
views
preparing large data sets for analysis [closed]
I have a fortran program that simulates a lot of ascii text file output. These are quite large to load the entirety of any single file into common data analysis programs (Matlab, R, SciPy).
I think ...
- 814
4
votes
0
answers
888
views
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 ...
- 311
2
votes
2
answers
2k
views
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 ...
0
votes
2
answers
112
views
Homebuild cluster and apps efficiecy
I have 3 pc's and was wondering if i can connect them into a cluster. I read few articles about clustering, but there is one think which I'm not sure about.
If I build my cluster can I run apps for "...
- 101
9
votes
2
answers
7k
views
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 ...
- 311
8
votes
4
answers
10k
views
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 ...
- 1,270
2
votes
1
answer
80
views
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 ...
- 121
10
votes
2
answers
10k
views
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 ...
- 1,839