[Rd] loading RBlas.dll

sachin1234 Sachinthaka.Abeywardana at csiro.au
Sun Jan 25 00:12:08 CET 2009

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*/
    /*rest of code*/

sorry for not being clear

Antonio, Fabio Di Narzo wrote:
> hi, whoever you are (I've seen no signature),
> 2009/1/22 sachin1234 <Sachinthaka.Abeywardana at 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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>> ______________________________________________
>> R-devel at r-project.org mailing list
>> https://stat.ethz.ch/mailman/listinfo/r-devel
> -- 
> Antonio, Fabio Di Narzo
> Ph.D. student at
> Department of Statistical Sciences
> University of Bologna, Italy
> ______________________________________________
> R-devel at r-project.org mailing list
> https://stat.ethz.ch/mailman/listinfo/r-devel

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