[neutron-mc] McStas info mail, 2007 february

[Willendrup, Peter Kj=?ISO-8859-1?B?5g==?=r]

Hello McStas users,


Here is a little information from the McStas team:

---------------------------------------------------------------------------
* Bugs/annoyances in current (mcstas-1.10) release:
---------------------------------------------------------------------------
- DiskChopper.comp: A bug in the shipped component makes it impossible
  to have multiple instances of this component, having different radius.
$ Solution: Get the bug-fixed component from
http://cvs.mcstas.org/cgi-bin/viewcvs.cgi/mcstas/lib/optics/DiskChopper.comp

- Threading: We recommend NOT to use the threading mechanism shipped with
mcstas-1.10 for these reasons: A) Performance is not as good as expected. B)
Threading will not work when writing virtual source files using
Virtual_Output. C) Threading sometimes produces corrupted output when using
mcdisplay.
$ Solution: Install MPI (preferably mpich) on your multicore/multiprocessor
system (Please still take remarks on Virtual_input/output and MPI from the
manual into account).

---------------------------------------------------------------------------
* US visit:
---------------------------------------------------------------------------
- The McStas team recently visited the SNS in Oak Ridge, TN and met with SNS
staff and Jiao Lin from the DANSE
(http://wiki.cacr.caltech.edu/danse/index.php/Main_Page) project. Our time
there was very productive and gave results that the McStas project and user
base will benefit from:
$ The next release will include the possibility to generate NeXus files if
the  NeXus libraries are available at install time. SNS is part of the final
tuning of the NeXus implementation in McStas.
$ The collaboration with DANSE has been strengthened: Standard McStas
releases can now be utilized in DANSE without modification of the core
sourcecode. 

---------------------------------------------------------------------------
* Next release:
---------------------------------------------------------------------------
- The plan is to release mcstas-1.11 late february/early march this year. We
here list a few of the release highlights:
$ Bugfixes, see above.
$ NeXus output if NeXus libs are available at install time
$ On Unix systems (including MacOS X), possibility to 'detach' simulations
from mcgui (start simulations in the background and be ready to continue
work in mcgui)
$ .deb (and possibly .rpm) distribution packages for Linux on Intel
processors will be provided
$ Improvements of support on MacOS X (possibly a .dmg style installer with
all needed support tools)


Best regards,

The McStas team:

Peter Willendrup (Risoe, DTU)
Emmanuel Farhi (ILL)
Kim Lefmann (Risoe, DTU)


--  
-----------------------------------------------
Peter Willendrup, MSc
Materials Research Department
Building 227
Risø National Laboratory
Technical University of Denmark
Frederiksborgvej 399
DK-4000 Roskilde
Denmark

Tel:  (+45) 4677 5862
Fax:  (+45) 4677 5758
Email: Peter.Willendrup at risoe.dk

-----------------------------------------------

>From 1 January 2007, Risø National Laboratory, the Danish Institute for
Food and Veterinary Research, the Danish Institute for Fisheries
Research, the Danish National Space Center and the Danish Transport
Research Institute have been merged with the Technical University of
Denmark (DTU) with DTU as the continuing unit.



Sent using the Microsoft Entourage 2004 for Mac Test Drive.