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Number crunching :
Panic Mode On (70) Server problems?
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rob smith Send message Joined: 7 Mar 03 Posts: 22160 Credit: 416,307,556 RAC: 380 |
Read carefully - Thus if you are requesting "GPU only", and there are no WU suitable you will get the dreaded "no tasks available" message, or one of its variants. That said, if you are asking for "any WU I can crunch" preference will be given to satisfying that particular crunchers "best" processor's needs. Which is exactly what I've been seeing for a few days now - nothing coming through for the CPU (hex core), because the GPU('460) is crunching its assigned tasks before its tanks are filled... Bob Smith Member of Seti PIPPS (Pluto is a Planet Protest Society) Somewhere in the (un)known Universe? |
Grant (SSSF) Send message Joined: 19 Aug 99 Posts: 13720 Credit: 208,696,464 RAC: 304 |
Whatever the problem was, it looks like they managed to sort it out. Still get the odd "Project has no tasks available" message, but now it's only every now & then, not most of the time & most requests result in work. No longer getting the Scheduler error messages & the network traffic has picked up & smothed out. Grant Darwin NT |
LadyL Send message Joined: 14 Sep 11 Posts: 1679 Credit: 5,230,097 RAC: 0 |
it's called the feeder. and there is a reason for the limited amount and not too fast turnover - something about the i/o load of acessing the database. With the new servers maybe it's possible to increase the values. To be fair when we run without limits you don't see the 'no tasks' messgage too often, usually only after maintenace when all the caches are screaming to be filled again. I'm not the Pope. I don't speak Ex Cathedra! |
Josef W. Segur Send message Joined: 30 Oct 99 Posts: 4504 Credit: 1,414,761 RAC: 0 |
I think that Synergy is just overloaded, or the Apache settings are not quite right yet.....dunno, just a guess. Synergy is trying to do a yeoman's duty here.... I think scheduler processes and feeder must be on the same machine, the "scheduler work queue" is in shared memory. The project is using FastCGI so it might be possible for the scheduling server (Apache) to be on a different machine. More LAN traffic that way, though. Joe |
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