Re: [modeller_usage] Error: Ran out of slaves to run tasks

[Xiao-Ping Zhang <>]

Dear Ben,

The patch fixed the problem. CPU's Memory usage is stable, ~14.3 MB per
core. Great!

Thank you very much!

Xiao-Ping


 
On Thu, 2012-02-23 at 10:54 -0800, Modeller Caretaker wrote:
> On 2/21/12 9:39 AM, Modeller Caretaker wrote:
> > On 02/21/2012 08:55 AM, Xiao-Ping Zhang wrote:
> >> When I was refining loops for a model in parallel, I asked modeller to
> >> generate 9999 models. But modeller stopped at 1245 with the following
> >> error. The computer has six cores, modeller uses four of them. The other
> >> two cores were free.
> > ...
> >> ValueError: Ran out of slaves to run tasks
> >
> > This means exactly what it says: all of the slaves died, so it had
> > nowhere to run the loop model building tasks. Each slave generates its
> > own output file (look for files ending in .slave). Look in there to see
> > what the problem was with each slave.
> 
> To conclude: it turned out that each slave was running out of memory. 
> This is actually caused by a memory leak in Modeller that only affects 
> parallel loopmodel runs. A patch is available to fix the problem at 
> http://salilab.org/modeller/wiki/Patches
> 
> 	Ben Webb, Modeller Caretaker