Hi Xiadong,
Perhaps you're competing with others for the access to disk? You can use
multiple CPUs (through MPI) for movie extraction. I wouldn't use too many,
as that will be very hard on disk access as well, and they may start to
bother each other.
HTH,
S
> Hi Sjors and all,
>
> I am trying to extract movie particles from ~200 K2 micrographs, each
> micrograph has 50 frames and I only need to extract 30 frames. At the
> beginning, the process is very fast, about one micrograph per minute. But
> after 50 micrographs or so, the process slows down to half an hour for one
> micrograph. I used single CPU and allow 15GB memory for the process.
>
> Does anybody have similar experience?
> I am wondering if I can use multiple CPUs for the particle extraction.
>
> thank you very much!
>
> xiaodong
>
--
Sjors Scheres
MRC Laboratory of Molecular Biology
Francis Crick Avenue, Cambridge Biomedical Campus
Cambridge CB2 0QH, U.K.
tel: +44 (0)1223 267061
http://www2.mrc-lmb.cam.ac.uk/groups/scheres
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