On Tue, Sep 29, 2020 at 4:32 PM Prof Brian Ripley wrote:
>
> On 29/09/2020 12:27, Kasper Daniel Hansen wrote:
> > To use veclib you need
> > --with-blas="-framework Accelerate"
>
> Details are in the R-admin manual, including that R fails one of its checks.
It may be worth mentioning that pyt
Thanks to all for the info and to Kasper for the complete options in
building R on macos. Using xcode clang/blas, I successfully built R 4.0.2
with the accelerate framework (or vecLib). I did some initial performance
tests using the scripts from
https://blog.revolutionanalytics.com/2014/10/revol
> On Sep 30, 2020, at 03:32, Prof Brian Ripley wrote:
>
> On 29/09/2020 12:27, Kasper Daniel Hansen wrote:
>> To use veclib you need
>>--with-blas="-framework Accelerate"
>
> Details are in the R-admin manual, including that R fails one of its checks.
>
> Simon's calling this vecLib is a
On 29/09/2020 12:27, Kasper Daniel Hansen wrote:
To use veclib you need
--with-blas="-framework Accelerate"
Details are in the R-admin manual, including that R fails one of its checks.
Simon's calling this vecLib is a bit misleading. 'vecLib' was a
vectorized library for PPC Macs, and th
To use veclib you need
--with-blas="-framework Accelerate"
My full building script on OS X is currently
../${SRCDIR}/configure SHELL='/bin/bash' \
--prefix=/usr/local/R/${R_VERSION} --disable-R-framework\
CC="/usr/local/clang8/bin/clang" \
CXX="/usr/local/clang8/bin/clang++" \
F77="/us
In my understanding, almost all of the speed up comes from using an
optimized BLAS. Optimizing LAPACK tend to have negligible impact on
performance. At least that is my impression, although I won't say I'm an
expert.
Best,
Kasper
On Tue, Sep 29, 2020 at 9:53 AM roy wrote:
> Hi Simon,
> Thanks f
Hi Simon,
Thanks for the info. I was totally unaware of ABI, vecLib, etc and that
Apple has blas, lapack, etc. But after reading up on this and re-reading
your email, I'm beginning to understand more about this.
So, I would like to first checkout vecLib. From what you say, would I have
to do so
Rollin,
it has been several years since I last tested MKL, so take it with a grain of
salt, but in general you don't necessarily have to build R with MKL in order to
use it - you only need to use --enable-BLAS-shlib and link to any
ABI-compatible BLAS which can be vecLib as well. Then you can c
