Re: [Mplapack-devel] FW: Fortran examples

[Maho N. <ch...@ma...>]

Hi,

From: "Fletcher, John P" <j.p...@as...>
Subject: RE: [Mplapack-devel] FW: Fortran examples
Date: Fri, 01 Apr 2011 09:58:54 +0100

> Nakata Maho
> 
> I was looking at the choice last night.  I think I am going to use mpfr (mpreal C++ interface) and mpcomplex.  I needed to reorder the libraries, -lmpc before -lmpfr as a test case was not linking properly.  I had copied MPFRLIBS in the examples/mlapack Makefile.

thanks for your comment. Could you please tell me which part of MPACK is wrong?

> There does not seem to be an operator<< in mcomplex but it should not be much work for me to make one.

Could you please tell me what "operator <<" do for mpcomplex?

> I am using gfortran, so plan to follow the MAGMA style to make an interface, but I will start with some C++ examples with MPACK to get a better understanding. I am more familiar with LAPACK than MPFR.

ok. Please let me know when idea comes up. Gfortran interface is also very important.

> You will find I am quite active at the moment on the MAGMA forum.
> 
> Are you in touch with Goto Kazusige?  There is unfortunately a bug of some sort in the Nehalem version of GotoBlas2 which means that safe operation requires use of the 4 core version even on an 8 core machine. It does not look as though maintenance is being done any more on the distribution site.
> 
> I don't have full details but can get them if needed.

I e-mailed to Goto Kazushige-san to ask your question.

Thanks


> Dr John P. Fletcher Tel: (44) 121 204 3389 (direct line), FAX: (44) 121 204 3678
> Chemical Engineering and Applied Chemistry (CEAC),
> Associate Dean - External Relations,
> School of Engineering and Applied Science (EAS),
> Aston University, Aston Triangle, BIRMINGHAM B4 7ET  U.K.               
> 
> 
> 
> -----Original Message-----
> From: Maho NAKATA [mailto:mah...@gm...] On Behalf Of Maho NAKATA
> Sent: 01 April 2011 01:32
> To: Fletcher, John P
> Cc: mpl...@li...
> Subject: Re: [Mplapack-devel] FW: Fortran examples
> 
> Hi Fletcher,
> 
> Oh you're developing MAGMA! Great. It is very fast on C2050.
> 
> Anyway, interface to FORTRAN77 would be impossible, but FORTRAN90 or 95 might be
> possible. Which MP library do you want to use? GMP, MPFR, QD?
> thanks,
>  Nakata Maho
> 
> From: "Fletcher, John P" <j.p...@as...>
> Subject: [Mplapack-devel] FW: Fortran examples
> Date: Thu, 31 Mar 2011 13:05:04 +0100
> 
>> Maho
>> 
>> On thinking about it, it was the wrong question to ask as the structure is such that C++ types will not have equivalents in FORTRAN.  The problem is that I want to adapt some code which is in FORTRAN so I am going to have to find some way to interface the two.  I am working with MAGMA (LAPACK for GPGPUs see http://icl.cs.utk.edu/magma/index.html) and I have to interface FORTRAN to C++ there.
>> 
>> Thank you
>> 
>> John
>> 
>> Dr John P. Fletcher Tel: (44) 121 204 3389 (direct line), FAX: (44) 121 204 3678
>> Chemical Engineering and Applied Chemistry (CEAC),
>> Associate Dean - External Relations,
>> School of Engineering and Applied Science (EAS),
>> Aston University, Aston Triangle, BIRMINGHAM B4 7ET  U.K.               
>> 
>> 
>> 
>> -----Original Message-----
>> From: Maho NAKATA [mailto:ch...@ma...] 
>> Sent: 31 March 2011 03:33
>> To: Fletcher, John P
>> Cc: mpl...@li...
>> Subject: Re: [Mplapack-devel] Fortran examples
>> 
>> Hi Fletcher, 
>> 
>> From: "Fletcher, John P" <j.p...@as...>
>> Subject: [Mplapack-devel] Fortran examples
>> Date: Wed, 30 Mar 2011 14:07:36 +0100
>> 
>>> I have just started using MPACK and successfully installed it on Ubuntu Linux 10.4 (64 bit).
>> 
>> Congratulations!
>> 
>>> Please, are there any examples in FORTRAN available?
>> 
>> Unfortunately, no...
>> 
>> thanks
>> -- Nakata Maho http://accc.riken.jp/maho/ , JA OOO http://ja.openoffice.org/
>> http://blog.goo.ne.jp/nakatamaho/ ,GPG: http://accc.riken.jp/maho/maho.pgp.txt
>> 
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