Erik,
Yes, the instruction fixed the build issue. Thank you very much :-)
Please update the "BUILD" file with the added instructions.
And, make sure to mention that gcc/g++-4.7.X is needed for building the
vecmathlib.
Thank you
Chuck
On 2/1/2013 7:39 PM, Erik Schnetter wrote:
Chuck
To change e.g. to Unix Makefiles, you would change autogen.sh to
contain the line
cmake -G 'Unix Makefiles'
after the "rm -f CMakeCache.txt". Does this correct things for you?
-erik
On Fri, Feb 1, 2013 at 6:15 PM, Chuck Zhao <[email protected]
<mailto:[email protected]>> wrote:
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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Erik Schnetter <[email protected]
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AIM: eschnett247, Skype: eschnett, Google Talk: [email protected]
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