[Pkg-scicomp-devel] Re: [xmds-devel] Debian xmds package ready to go

[Graham Dennis]

Christian,
This is actually a bug in 1.5-3 that we have since fixed in CVS. The  
functions XMDSSwapFloat and XMDSSwapDouble (defined in  
xmdssimulation.cc) use the variable 'x', while it should have been  
defined as '_x'. We are planning on making a new release in the near  
future to address some of the problems with 1.5-3.

Graham

On 1 Dec 2006, at 1:53 AM, Christian T. Steigies wrote:

> On Thu, Nov 30, 2006 at 02:38:57PM +0100, Rafael Laboissiere wrote:
>> * Graham Dennis <graham.dennis at anu.edu.au> [2006-11-30 22:11]:
>>
>>> Looking at the logs, it looks to be a difference between the MPI
>>> distribution you are using and others. For some, you can invoke  
>>> mpicc
>>> to compile C++ source files (such as the files generated by XMDS),
>>> however for others you need to execute mpicxx, mpic++ or something
>>> similar. You can override the name of the MPI compiler used by
>>> creating a file ~/.xmds/xmds.prefs with the line:
>>> MPICC=mpicxx
>>> (or mpic++, etc).
>>>
>>> Perhaps the best solution might be to change the default for  
>>> MPICC in
>>> XMDS from mpicc to mpic++.
>>
>> Simply building the package with --with-mpi-compiler=mpicxx fixed the
>> problem.  Both kubo and highdim examples work now.  Version  
>> 1.5.3-6 of the
>> Debian package is now ready for release.  It is waiting for ftp-admin
>> approval in the Debian NEW queue (http://ftp-master.debian.org/ 
>> new.html).
>
> Cool, I'll give that a try. But we are having a different(?) problem
> here with our first steps building our own xmds files. It is  
> probably an
> error in the xmds files, but while testing the lorenz example, I  
> noted this
> odd behaviour. When xmds is run from Rafael's Makefile, it compiles  
> fine,
> however when I call xmds manually on the same machine with the same  
> input
> file, it fails. It calls the C++ compiler with a different name,  
> which I
> don't understand, sometimes it omits the fftw library, the library  
> paths are
> different, can somebody explain that or do I have to run xmds from a
> Makefile?
>
> steigies at batdaf:~/debian/xmds/build/examples>make lorenz.run
> xmds lorenz.xmds
> This is xmds, version 1.5-3
> Copyright 2000-2004 Greg Collecutt, Joseph Hope, Paul Cochrane and  
> others
> xmds is available from http://www.xmds.org
>
> field name defaulting to 'main'
> Output file name defaulting to 'lorenz.xsil'
> compiling ...
>         g++   -O3 -ffast-math -funroll-all-loops -fomit-frame- 
> pointer -o lorenz lorenz.cc -I.
> -I/usr/lib/mpich/include/ -lm  -lxmds -L.  -lfftw
>
> lorenz ready to execute
> mv lorenz lorenz.run
> steigies at batdaf:~/debian/xmds/build/examples>xmds lorenz.xmds
> This is xmds, version 1.5-3
> Copyright 2000-2004 Greg Collecutt, Joseph Hope, Paul Cochrane and  
> others
> xmds is available from http://www.xmds.org
>
> field name defaulting to 'main'
> Output file name defaulting to 'lorenz.xsil'
> compiling ...
>         x86_64-linux-gnu-g++   -O3 -ffast-math -funroll-all-loops - 
> fomit-frame-pointer -o lorenz lorenz.cc -I/usr
> -lm  -lxmds -L/usr  -lfftw
> lorenz.cc: In function 'float XMDSSwapFloat(float)':
> lorenz.cc:221: error: '_main_main_index_pointer' was not declared  
> in this scope
> lorenz.cc: In function 'double XMDSSwapDouble(double)':
> lorenz.cc:227: error: '_main_main_index_pointer' was not declared  
> in this scope
> compilation failed.
>
> Christian