Re: fread multiple files
Re: fread multiple files
- Subject: Re: fread multiple files
- From: Tomasz Koziara <email@hidden>
- Date: Fri, 25 Sep 2009 21:40:47 +0100
David, Terry, Jens - thanks for your answers
Here are the attached shark and sampler outpus:
http://people.civil.gla.ac.uk/~koziara/solfec.shark.txt.gz
http://people.civil.gla.ac.uk/~koziara/solfec.trace.tar.gz
Indeed - I do not use MPI IO. I use an XDR based binary output
instead. Would be desirable if the post-processor would not require
MPI, hence I stick to XDR for now. Of course it could change, once I
am not able to overcome the efficiency issues. But then I would
probably go for HDF5.
The post-processing process (single-thread) simply opens all 3 * N
files and keeps them open. Of those 3 * N files, only N store some
substantial data (are large), while the rest stores indexing and
labeling data. So basically what happens is:
For each time t
For each output file f
Seek (f, t)
Read (f)
Tomek
On 25 Sep 2009, at 20:20, Jens Alfke wrote:
Could you post the actual output of running 'sample' on your single-
threaded tool? I think you may be misinterpreting the sampling.
—Jens
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