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08-08-2014, 08:56 AM
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#1
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Member
Registered: Jan 2012
Location: India
Distribution: Ubuntu, Gentoo, Fedora, Rhel5,openSUSE
Posts: 165
Rep:
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Running hpl on Rocks 6.1 error : Cannot chdir to home directory?
Hey everyone,
I am trying to run hpl on rocks 6.1 I followed downloading and configuration of linpack using this
http://frankinformation.wordpress.co...rocks-cluster/
And i also referred the official rocks documentation
http://www.rocksclusters.org/rocks-d...g-linpack.html
xhpl is correctly made using make. I used sample HPL.dat for two processors and running this command
Code:
/opt/openmpi/bin/mpirun -np 2 -machinefile machines /export/home/linpacker/hpl/bin/Linux_PII_FBLAS/xhpl
This is the error
Code:
could not chdir to home directory : /export/home/linpacker : No such file or directory
Mpirun was unable to launch specific application as it failed to change the directory
ls -ld for /export/home/linpacker gives me
-drwx------
I am unable to figure out. Kindly help. Sorry in advance if any information is missing
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08-08-2014, 10:34 AM
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#2
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LQ Guru
Registered: Jul 2003
Location: Birmingham, Alabama
Distribution: SuSE, RedHat, Slack,CentOS
Posts: 27,487
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Quote:
Originally Posted by abhishekgit
Hey everyone,
I am trying to run hpl on rocks 6.1 I followed downloading and configuration of linpack using this
http://frankinformation.wordpress.co...rocks-cluster/
And i also referred the official rocks documentation
http://www.rocksclusters.org/rocks-d...g-linpack.html
xhpl is correctly made using make. I used sample HPL.dat for two processors and running this command
Code:
/opt/openmpi/bin/mpirun -np 2 -machinefile machines /export/home/linpacker/hpl/bin/Linux_PII_FBLAS/xhpl
This is the error
Code:
could not chdir to home directory : /export/home/linpacker : No such file or directory
Mpirun was unable to launch specific application as it failed to change the directory
ls -ld for /export/home/linpacker gives me
-drwx------
I am unable to figure out. Kindly help. Sorry in advance if any information is missing
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You posted that the directory in question is only readable to the owner, but don't post who the owner is. Unless you're logged in as the owner of that directory or root, you won't be able to do ANYTHING with it. Why are the permissions like that? Who owns the directory? Have you tried the very obvious, and give other users/groups permissions (say, "chmod 755"???)
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08-08-2014, 03:01 PM
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#3
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Member
Registered: Jan 2012
Location: India
Distribution: Ubuntu, Gentoo, Fedora, Rhel5,openSUSE
Posts: 165
Original Poster
Rep:
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@TBOne,
Oh sorry. I am running as "linpacker" user. And the error says "No such file or directory" instead of "permission denied" or something
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08-08-2014, 04:42 PM
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#4
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LQ Guru
Registered: Jul 2003
Location: Birmingham, Alabama
Distribution: SuSE, RedHat, Slack,CentOS
Posts: 27,487
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Quote:
Originally Posted by abhishekgit
@TBOne,
Oh sorry. I am running as "linpacker" user. And the error says "No such file or directory" instead of "permission denied" or something
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Ok...so again, a very obvious thing to do would be to check to see if that file/directory exists. DOES IT? If not, CREATE IT.
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08-11-2014, 02:16 AM
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#5
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Member
Registered: Jan 2012
Location: India
Distribution: Ubuntu, Gentoo, Fedora, Rhel5,openSUSE
Posts: 165
Original Poster
Rep:
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@TB0ne,
Yes.. Home directory didn't exist on the compute nodes, I SShed onto the compute nodes and created the directories. That error is replaced with another error now. Will work on it and come back later. thanks!
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08-11-2014, 08:22 AM
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#6
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LQ Guru
Registered: Jul 2003
Location: Birmingham, Alabama
Distribution: SuSE, RedHat, Slack,CentOS
Posts: 27,487
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Quote:
Originally Posted by abhishekgit
@TB0ne,
Yes.. Home directory didn't exist on the compute nodes, I SShed onto the compute nodes and created the directories. That error is replaced with another error now. Will work on it and come back later. thanks!
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Always a good idea to read and UNDERSTAND the error you get, before posting a question.
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