[torqueusers] What is cartwire.ncsa.uiuc.edu?

Lorenzo Campo lorenzo118 at interfree.it
Mon Oct 17 09:53:25 MDT 2005


Hi all,
I installed and configure torque1.2.0p6 on my 16-processor Fedora Core 3 
cluster, but a strange thong happens. All nodes are free (by pbsnodes -a) 
but when I try to submit a job on 4 processors, the job try to run, the 
reults in the .out file (the .err file is empty) are:

p0_7109: (60.382862) Procgroup:
p0_7109: (60.382985)     entry 0: medusa003.dicea.unifi.it 0 0 
/home/berna/./helloMpi berna
p0_7109: (60.383012)     entry 1: cartwire.ncsa.uiuc.edu 1 1 
/home/berna/./helloMpi berna
p0_7109: (60.383035)     entry 2: cartwire.ncsa.uiuc.edu 1 2 
/home/berna/./helloMpi berna
p0_7109: (60.383063)     entry 3: cartwire.ncsa.uiuc.edu 1 3 
/home/berna/./helloMpi berna
p0_7109:  p4_error: Could not gethostbyname for host 
cartwire.ncsa.uiuc.edu; may be invalid name
: 61

Why it tries to connect to cartwire.ncsa.uiuc.edu (and WHAT IS 
cartwire.ncsa.uiuc.edu, I never put such an address in none of my files in 
my cluster)? With 2 processor (same program) I obtain:

p0_9131: (60.758792) Procgroup:
p0_9131: (60.758893)     entry 0: medusa001.dicea.unifi.it 0 0 
/home/berna/./helloMpi berna
p0_9131: (60.758916)     entry 1: cartwire.ncsa.uiuc.edu 1 1 
/home/berna/./helloMpi berna
p0_9131:  p4_error: Could not gethostbyname for host 
cartwire.ncsa.uiuc.edu; may be invalid name
: 61


and so on. What's going on? Where in the PBS is put this 
"cartwire.ncsa.uiuc.edu" and how I can to avoid this? It seems that it 
takes only the n-th processor of my cluster (the second if I request 2 
processors, the third if I request 3, and so on) and then it tries to 
submit to this external address.
Any idea?
Thank you
Lorenzo Campo




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