[mcstas-users] Perl problem Ubuntu 11.10

[robert.dalgliesh at stfc.ac.uk]

Hi Peter,
I've spotted another problem with the new ubuntus. 10.10 onwards.
Mpd is now the name of the main music playing program.

Hence something like this won't work anymore.

mpd &
mcrun -c --mpi=8 -n 1e8 test.instr --format=Matlab

Any hints on how to launch a multiprocessor run.

Rob

-----Original Message-----
From: mcstas-users-bounces at mcstas.org [mailto:mcstas-users-bounces at mcstas.org] On Behalf Of Willendrup, Peter Kjær
Sent: 24 October 2011 11:45
To: <Jean-Francois.Moulin at hzg.de> <Jean-Francois.Moulin at hzg.de>
Cc: McStas users list at mcstas.org
Subject: Re: [mcstas-users] Perl problem Ubuntu 11.10

Hello Jean-Francois,

On Oct 24, 2011, at 10:10 , <Jean-Francois.Moulin at hzg.de<mailto:Jean-Francois.Moulin at hzg.de>> <Jean-Francois.Moulin at hzg.de<mailto:Jean-Francois.Moulin at hzg.de>> wrote:

I just upgraded my ubuntu to 11.10 and now get the following error

/usr/bin/perl: symbol lookup error: /usr/lib/libpgplot.so.5: undefined symbol: XOpenDisplay

(this of course means I cannot plot anything)

any clue?

There seems to be a problem with the perl-PGPLOT provided with the newest Ubuntu. Will file a bug-report with them. It turns out there is a work-around here:

1) Install a few packages:
apt-get install gfortran libextutils-f77-perl libx11-dev

2) Get, build and install perl-PGPLOT from CPAN:
wget http://search.cpan.org/CPAN/authors/id/K/KG/KGB/PGPLOT-2.21.tar.gz
tar xzvf PGPLOT-2.21.tar.gz
cd PGPLOT-2.21/ && perl Makefile.PL && make && sudo make install

Cheers,

Peter

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