From peljasz at yahoo.co.uk  Wed Feb 26 07:40:39 2014
From: peljasz at yahoo.co.uk (lejeczek)
Date: Wed, 26 Feb 2014 06:40:39 +0000
Subject: [Rd] acml blas+lapac in R
In-Reply-To: <530C72DC.20009@stats.ox.ac.uk>
References: <530C5785.5010603@yahoo.co.uk> <530C72DC.20009@stats.ox.ac.uk>
Message-ID: <530D8C67.9060007@yahoo.co.uk>

thank you Brian
if ACML is the problem I wonder if it ever was pointed out 
to AMD
shame because ACML results in really nice performance on AMD 
hardware


On 25/02/14 10:39, Prof Brian Ripley wrote:
> Note that this is in the 'R Installation and 
> Administration Manual'. Please follow the posting guide 
> and check the manuals before posting.
>
> On 25/02/2014 08:42, lejeczek wrote:
>> dear experts
>>
>> I'd like to ask you, probably on behalf all of us who try 
>> to use AMD's
>> ACML for performance optimisation a question.
>> There seem to be problem when these two, R and ACML are 
>> coupled,
>> described here:
>>
>> http://devgurus.amd.com/message/1255852#1255852
>>
>> I'd like to ask, while not being a programmer/developer, 
>> how incorrect
>> and dangerous this might be?
>> maybe such a setup must be avoided all together?
>
> As an R developer is reputed to have said several years ago
>
> 'Do you want it fast or do you want it right?'
>
> Handing NAs correctly is pretty fundamental to R's 
> operation. There are several other optimized BLAS which 
> are not known to work incorrectly, and I always use one of 
> those.
>
>>
>> many thanks & regards
>>
>> ______________________________________________
>> R-devel at r-project.org mailing list
>> https://stat.ethz.ch/mailman/listinfo/r-devel
>
>



[Rd] acml blas+lapac in R
lejeczek