Hello Everyone,
I have been very happy using pyopencl built with gcc & I am trying to
get pyopencl up + running on another platform using:
icc
NVIDIA Cuda 4.0 SDK
python 2.6.4
numpy from github
The first issue was resolved by adding "-no-gcc" to CFLAGS, so the CUDA
SDK would avoid some gcc specific logic.
After this I ran into issues with missing files in bpl-subset:
For example, it appears the "edg" directory (which is needed for icc &
other edg based compilers) is missing at following path:
pyopencl-2011.1.2/bpl-subset/bpl_subset/boost/preprocessor/list/detail/
I looked at the bpl-subset repo and found the script that extracts the
desired subset of boost.
Running this on a fresh copy of the newest boost (1.48.0), I found bcp
to be the culprit - for some reason it omits this directory.
I replaced bpl-subset/bpl_subset/boost, with boost_1_48_0/boost, I made
it further,
however I hit some compiler errors:
The first error, icc is confused by using PyArray_BYTES macro as an lvalue:
src/wrapper/wrap_cl.hpp(2107): error: expression must be a modifiable lvalue
PyArray_BYTES(result.get()) = reinterpret_cast<char *>(mapped);
^
I was able to get it to compile with the following code:
PyArrayObject *py_ptr = (PyArrayObject*)result.get();
py_ptr->data = reinterpret_cast<char *>(mapped);
The second error occurs in logic for creating a context with gl sharing:
src/wrapper/wrap_cl.hpp(741): error: expected a statement
else
^
I think the compiler takes a bad path though the current #defines.
I stripped the code down to:
if (prop == CL_CONTEXT_PLATFORM)
{
py::extract<const platform &> value(prop_tuple[1]);
props.push_back(
reinterpret_cast<cl_context_properties>(value().data()));
}
else
throw error("Context", CL_INVALID_VALUE, "invalid context
property");
And I was able to compile, but of course this is not a good general
solution.
At this point, the module compiles, but when I try to use pyopencl I get
a runtime error due to a missing symbol:
import pyopencl._cl as _cl
ImportError:
zzz/site-packages/lib/python2.6/site-packages/pyopencl-2011.1beta3-py2.6-linux-x86_64.egg/pyopencl/_cl.so:
undefined symbol: _ZTIN5boost6python17error_already_setE (typeinfo for
boost::python::error_already_set)
Could this be a consequence of using 1_48_0, instead of the modified
version of 1_47_0 in the bpl_subset repo?
Thanks for any help you can provide. I am eager to work though these
issues, willing to test & contribute back any progress .
-Cyrus Harrison
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