Oxford UI updated other nodes proceding.
Bristol, Cambridge and Birmingham have confirmed they too have updated.
Wednesday, September 06, 2006
Tuesday, September 05, 2006
Oxford updated
Over the weekend I updated the rpms on Oxfords gird nodes. On Monday I re ran yaim to make the changes take effect. Testing was hammpered by the SFT page being very slow and the submission page not working well. On Tuesday I discovered Oxford had been failing the SFT's due to pbs not working properly, because there was no longer a nodes, file. This was traced to a typo in the site-info.def file. yaim was re run on which seemed to cure things.
Yves has had trouble getting >250Mb/s from Birmingham, he thinks this is due to dpm problems rather than raw bandwidth issues as iperf tests give much better results.
We are now testing Oxford instead of Birmingham.
Yves has had trouble getting >250Mb/s from Birmingham, he thinks this is due to dpm problems rather than raw bandwidth issues as iperf tests give much better results.
We are now testing Oxford instead of Birmingham.
Friday, September 01, 2006
Friday pm
Bristol - Birmingham tests due to start today.
Winnie had some problems diagnosing the error messages from the transfer tests, Yves thinks the documentation is OK if you are an expert but it could be improved.
Yves has been benchmarking new systems, Intel Woodcrest vs AMD Opteron, Ethernet vs Infiniband, to provide data for Birminghams future escience cluster purchase. Some results will be available later.
Winnie had some problems diagnosing the error messages from the transfer tests, Yves thinks the documentation is OK if you are an expert but it could be improved.
Yves has been benchmarking new systems, Intel Woodcrest vs AMD Opteron, Ethernet vs Infiniband, to provide data for Birminghams future escience cluster purchase. Some results will be available later.
update
Four sites out of 5 are now running glite 3.0.2
Just Oxford to go which is being upgraded today.
rm failures at Oxford were cured by re running yaim on the se's. May be gridftp had gone mad?
EDFA-JET is now fully operational and running SFT's succesfully.
Yves continuing to test DPM-DPM throughput and has been tuning the kernel and tcp ip parameters to optimise performance.
Yves also carried out CASTOR DPM tests last Sunday, http://www.gridpp.ac.uk/wiki/RAL_Tier1_CASTOR_SRM_tests_T1toT2
Just Oxford to go which is being upgraded today.
rm failures at Oxford were cured by re running yaim on the se's. May be gridftp had gone mad?
EDFA-JET is now fully operational and running SFT's succesfully.
Yves continuing to test DPM-DPM throughput and has been tuning the kernel and tcp ip parameters to optimise performance.
Yves also carried out CASTOR DPM tests last Sunday, http://www.gridpp.ac.uk/wiki/RAL_Tier1_CASTOR_SRM_tests_T1toT2
Friday, August 25, 2006
Condor Problems at Cambridge
The glite CE requires a version of Condor which is a developmet fork, and not the production release.
Santanu expects very few production sites to ever consider using a development release and yet LCG has a dependacy on it.
The second number in the release version is even for production and odd for development.
The numbers in question are; lcg requires 6.7.10-1 but Cambridge says 6.6.x-x is more likely at a production site or may be the next release which will be 6.8.x-x.
Santanu expects very few production sites to ever consider using a development release and yet LCG has a dependacy on it.
The second number in the release version is even for production and odd for development.
The numbers in question are; lcg requires 6.7.10-1 but Cambridge says 6.6.x-x is more likely at a production site or may be the next release which will be 6.8.x-x.
First Post
Visited Yves at Birmingham on Monday 21st . Discussed the throughput tests he has been carrying out between Bristol and Ral and Bham. Carried out some tests between Oxford and Bham.
Whole building power testing at Oxford on Wednesday 23rd. Set queues to disabled on Monday to force quese to drain. I had previously marked all the nodes offline which meant Oxford failed some SFT's, just disabling the VO queues is a better way to do it. All systems came back OK on Thursday morning.
Yves has been helping Culham get the EDFA-JET site up and running via email. They are very nearly there.
Whole building power testing at Oxford on Wednesday 23rd. Set queues to disabled on Monday to force quese to drain. I had previously marked all the nodes offline which meant Oxford failed some SFT's, just disabling the VO queues is a better way to do it. All systems came back OK on Thursday morning.
Yves has been helping Culham get the EDFA-JET site up and running via email. They are very nearly there.
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