So you don't need this: you just need to replace Rblas.dll.
DLLs can contain initialization code: that is standard Windows'
practice so please read up on it.
On Sat, 24 Jan 2009, sachin1234 wrote:
hi Antonio,
The name's Sachin :) . I need this because im not implementing the ATLAS,
fast BLAS or anything like that. What im trying to do is to make a GPU
version of blas. I have implemented this so far but extremely inefficiently.
What i need to do is to do things like initialisation of the GPU hardware as
soon as Rblas.dll gets loaded.
Whats happening so far is something like this:
GPU_DGEMM (arguments)}/*this is a blas function*/
initialise_GPU;
/*rest of code*/
return;
}
sorry for not being clear
sachin
Antonio, Fabio Di Narzo wrote:
hi, whoever you are (I've seen no signature),
2009/1/22 sachin1234 <sachinthaka.abeyward...@csiro.au>:
hi everyone,
Im implementing a new RBlas dll but just for optimising sake i need to
know
how and WHERE (which source code) RBlas gets loaded. there is a call to
loadlibrary() in dynload.c BUT it seems this is not the function that is
loading Rblas.
Why do you need this? The R-admin manual explains how to replace the R
built-in version of Blas with a custom, optimized one. Is this what
are you looking for? One of the methods mentioned here doesn't even
require re-compilation of R.
Bests,
f.
how do i know this? well i added the code :(just after the loadlibrary()
call)
/*********************************************/
/*this section writes into files which libraries were loaded*/
file=fopen("libraries.txt","a");
fputs(path,file);
fputs("\n",file);
fclose(file);
/******************************************/
so that it prints out the path names of which ever libraries are loaded
and
the output is:
C:/DOCUME~1/abe044/MYDOCU~1/PROJEC~1/GPU_BLAS/R-28~1.1/library/methods/libs/methods.dll
C:/DOCUME~1/abe044/MYDOCU~1/PROJEC~1/GPU_BLAS/R-28~1.1/library/grDevices/libs/grDevices.dll
C:/DOCUME~1/abe044/MYDOCU~1/PROJEC~1/GPU_BLAS/R-28~1.1/library/stats/libs/stats.dll
and i think i got tools.dll to load as well. I cant find where R.dll,
Rblas.dll etc gets loaded. My main focus is Rblas.dll
now heres what i expect. Whenever you open R it runs one of its script
files
which contains dyn.load and loads it. HOWEVER as far as i understand
dyn.load must be using dynload.c. Hence it should spit loading blas into
libraries.txt which it doesnt do.
I am stumped. I've spend nearly 2 days on this. any help would be
appreciated
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Antonio, Fabio Di Narzo
Ph.D. student at
Department of Statistical Sciences
University of Bologna, Italy
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Professor of Applied Statistics, http://www.stats.ox.ac.uk/~ripley/
University of Oxford, Tel: +44 1865 272861 (self)
1 South Parks Road, +44 1865 272866 (PA)
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