Erik,
I have problem building it with gcc-4.4.7 and ninja on Ubuntu 12.10.
Could you set the default build env to gnu make or cmake?
Thank you
Chuck
On 2/1/2013 2:08 PM, Erik Schnetter wrote:
The loop kernels in our application call math functions such as
sqrt(), exp(), or log(). While some CPUs provide some of these via
machine instructions (e.g. sqrt() via SSE2), others either need to be
scalarised or need to be implemented manually. Currently, pocl's
run-time library scalarises these, i.e. double4 sqrt(double4) is
implemented via 4 calls to libc's double sqrt(double).
I have implemented vecmathlib
<https://bitbucket.org/eschnett/vecmathlib>, a generic library that
implements these math functions directly. Benchmarks show that this
can speed up these intrinsics significantly, i.e. by a factor of
several in some cases. I would like to use vecmathlib with pocl.
vecmathlib is implemented in C++, since using templates greatly
simplifies the code. It builds with both gcc and clang. vecmathlib is
still incomplete in several respects, e.g. some intrinsics should have
a higher precision, could be further optimised, or inf and nan are not
yet handled correctly.
-erik
--
Erik Schnetter <[email protected]
<mailto:[email protected]>>
http://www.perimeterinstitute.ca/personal/eschnetter/
AIM: eschnett247, Skype: eschnett, Google Talk: [email protected]
<mailto:[email protected]>
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