[neutron-mc] Mcformat Problems

[Emmanuel FARHI]

Hi Aaron,

That's nice you're using mcformat. The merging of virtual sources is not
in the high priority list, as usually these are simple files that may be
catenated using simple editors. Indeed, a virtual source file contains a
header, followed by events, one per line. To merge files manually, one has
to remove the second header (using something like a head/tail command in
Unix/Linux), and simply do a 'cat a b' or 'more a b'.
But in principle, I agree, this is not too much an effort to indeed
support virtual sources, so I'll do that some not too far day (but not too
close as well).
I've corrected the mcformat in our CVS, so that next release will fix the
C:\path1\c:\path2 bug that you reported.

I've also fixed a potential issue regarding MPI computation which stalls.
You just have to replace your current c:\mcstas\lib\share\mcstas-r.c. We
can not guaranty that this completely fixes the problem, and are currently
running large MPI tests. We would appreciate if you would re-run some
simulations that caused problems and could not perform entirely.

Thanks for keeping using McStas, and pushing us to improve the software.

Emmanuel and Peter.


> Hi Peter,
>
> The work around did work, with a slight bug.  The files were all
> successfully merged, however the resultant files were not created in the
> c:\test folder but in a c:\test\temp\one folder, and an empty
> c:\test\temp\two folder was also created.
>
> Do you plan to incorporate the merging of virtual_input into mcformat
> files
> at any point?
>
> Thanks again,
>
> Aaron
>
> -----Original Message-----
> From: neutron-mc-bounces at risoe.dk [mailto:neutron-mc-bounces at risoe.dk] On
> Behalf Of Willendrup, Peter Kjær
> Sent: Tuesday, November 20, 2007 4:59 PM
> To: McStas users list at neutron.risoe.dk
> Subject: Re: [neutron-mc] Mcformat Problems
>
> Hi there,
>
>
> Thanks for reporting, the bug has been added to our TODO. For now, could
> you
> try the workaround mentioned below for me?
>
> On 11/20/07 10:45 PM, "Aaron M. Percival" <percival at physics.queensu.ca>
> wrote:
>
>> I've been having some problems running the mcformat utility on my
>> windows
>> machine.
>>
>> I have two directories that contain results from two runs of the same
>> simulation and I would like to merge the data.  In the directories are
>> the
>> data from various detectors, along with the list file from a
> virtual_input.
>> I run the following command line:
>
> A small note here, mcformat currently _does_not_ merge virtual_input
> files.
>
>> mcformat: Fatal error accessing C:\test\c:\temp\one
>
> Here is an indication of the problem - windows disklabels should be
> removed
> when generating the output dir. Could you instead try the following:
>
> C:\>mcformat --format=McStas --force --dir=C:\test \temp\one \temp\two
> --merge
>
>
> Thanks again,
>
> Peter
>

-- 
FARHI Emmanuel <farhi at ill.fr>
Groupe DS/CS, ILL4/156, Tel 04 76 20 71 35
ILL, Grenoble
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