R devel - Mar 2008 - code optimization,analysis

Hi,

After having used S+ in commercial setting and then R
in non-commerical (but still supporting my commercial
interests), I would like to give back, if possible.

Where I can contribute:
1.  SCAN / PREVENT Stability and Threat analysis (big
open source presence supported by coverity)
2.  Intel Threaded Building Blocks library support to
leverage multicore CPUs (plan now for 8-way)
3.  VTune analysis/cache optimization for
identification of loop unrolls, etc.

All this would be on linux (Fed8 at present), except I
do have an Intel compiler on Win if it was needed,
would need to find fortran compiler, make lots of
adjustments, I suspect.
 
I've already started on #3 and would only take on #1
if someone in the R project blessed, because David
Miller at coverity likes to support the broader
projects over lone-cowboy stuff.

P.S. What an easy build, as far as open src goes, your
build person deserves credit.  I'm currently setting
up to compare gcc to intel compiler on the R base and
rerunning the timing benchmarks.

  Thanks.

M Jacobson
http://www.ihaveyoga.com
ph. 415.515.3333



     
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Be a better friend, newshound, and

On 20/03/2008 7:03 AM, m jacobson wrote:
> Hi,
> 
> After having used S+ in commercial setting and then R
> in non-commerical (but still supporting my commercial
> interests), I would like to give back, if possible.
> 
> Where I can contribute:
> 1.  SCAN / PREVENT Stability and Threat analysis (big
> open source presence supported by coverity)
> 2.  Intel Threaded Building Blocks library support to
> leverage multicore CPUs (plan now for 8-way)
> 3.  VTune analysis/cache optimization for
> identification of loop unrolls, etc.
> 
> All this would be on linux (Fed8 at present), except I
> do have an Intel compiler on Win if it was needed,
> would need to find fortran compiler, make lots of
> adjustments, I suspect.
>  
> I've already started on #3 and would only take on #1
> if someone in the R project blessed, because David
> Miller at coverity likes to support the broader
> projects over lone-cowboy stuff.
You didn't mention this, but putting together (and maintaining) a tool 
chain for 64 bit Windows builds would be appreciated.
> P.S. What an easy build, as far as open src goes, your
> build person deserves credit.  I'm currently setting
> up to compare gcc to intel compiler on the R base and
> rerunning the timing benchmarks.
That's largely due to Brian Ripley's efforts, but there are many other 
contributors to it.

Duncan Murdoch