[PyCUDA] pycuda and cuda 64 bits on mac SL

[Alan]

Hi there,

Finally nVidia released Cuda (partially) 3.0 in 64 bits for Mac (not beta
version!)

So I gave a try with pycuda.

I used pycuda git (Sun Apr 11 10:54:51) with python 2.6 from Fink, 64 bits.

I changed siteconf.py:

BOOST_INC_DIR = ['/sw/include']
BOOST_LIB_DIR = ['/sw/lib']
BOOST_COMPILER = 'gcc43'
BOOST_PYTHON_LIBNAME = ['boost_python-mt']
BOOST_THREAD_LIBNAME = ['boost_thread-mt']
CUDA_TRACE = False
CUDA_ENABLE_GL = False
CUDADRV_LIB_DIR = []
CUDADRV_LIBNAME = ['cuda']
CXXFLAGS = []#['-m64']
LDFLAGS = []#['-m64']
CXXFLAGS.extend(['-isysroot', '/Developer/SDKs/MacOSX10.6.sdk'])
LDFLAGS.extend(['-isysroot', '/Developer/SDKs/MacOSX10.6.sdk'])

and setup.py:
diff --git a/setup.py b/setup.py
index 319f18b..7e2ee05 100644
--- a/setup.py
+++ b/setup.py
@@ -220,9 +220,11 @@ def main():
         # also, default to 32-bit build, since there doesn't appear to be a
         # 64-bit CUDA on Mac yet.
         if "-arch" not in conf["CXXFLAGS"]:
-            conf["CXXFLAGS"].extend(['-arch', 'i386', '-m32'])
+            #conf["CXXFLAGS"].extend(['-arch', 'i386', '-m32'])
+            conf["CXXFLAGS"].extend(['-arch', 'x86_64', '-m64'])
         if "-arch" not in conf["LDFLAGS"]:
-            conf["LDFLAGS"].extend(['-arch', 'i386', '-m32'])
+            #conf["LDFLAGS"].extend(['-arch', 'i386', '-m32'])
+            conf["LDFLAGS"].extend(['-arch', 'x86_64', '-m64'])

     ext_kwargs = dict()

and did:

make
#(apparently all went fine, despite several warnings)

sudo make install
#(all went fine)

Then:
cd test
python test_driver.py

and it didn't work:

=========================================================== test session
starts ============================================================
python: platform darwin -- Python 2.6.4 -- pytest-1.2.1
test object 1: test_driver.py

test_driver.py FFFFFFFFFFFFFFFFFF

================================================================= FAILURES
=================================================================
_____________________________________________________
TestDriver.test_simple_kernel_2
______________________________________________________

    def f(*args, **kwargs):
        import pycuda.driver
        # appears to be idempotent, i.e. no harm in calling it more than
once
        pycuda.driver.init()

        ctx = make_default_context()
        try:
            assert isinstance(ctx.get_device().name(), str)
            assert isinstance(ctx.get_device().compute_capability(), tuple)
            assert isinstance(ctx.get_device().get_attributes(), dict)
            inner_f(*args, **kwargs)
        finally:
>           ctx.pop()
E           LaunchError: cuCtxPopCurrent failed: launch failed

/sw/lib/python2.6/site-packages/pycuda-0.94rc-py2.6-macosx-10.6-i386.egg/pycuda/tools.py:504:
LaunchError
------------------------------------------------------------- Captured
stderr --------------------------------------------------------------
PyCUDA WARNING: a clean-up operation failed (dead context maybe?)
cuMemFree failed: invalid context
PyCUDA WARNING: a clean-up operation failed (dead context maybe?)
cuModuleUnload failed: invalid context
PyCUDA WARNING: a clean-up operation failed (dead context maybe?)
cuMemFree failed: invalid context
PyCUDA WARNING: a clean-up operation failed (dead context maybe?)
cuMemFree failed: invalid context

...

[snip]

...

/sw/lib/python2.6/site-packages/pycuda-0.94rc-py2.6-macosx-10.6-i386.egg/pycuda/tools.py:216:
RuntimeError
======================================================== 18 failed in 0.27
seconds =========================================================
Error in atexit._run_exitfuncs:
Traceback (most recent call last):
  File "/sw/lib/python2.6/atexit.py", line 24, in _run_exitfuncs
    func(*targs, **kargs)
LogicError: cuCtxPopCurrent failed: invalid context
Error in sys.exitfunc:
Traceback (most recent call last):
  File "/sw/lib/python2.6/atexit.py", line 24, in _run_exitfuncs
    func(*targs, **kargs)
pycuda._driver.LogicError: cuCtxPopCurrent failed: invalid context
-------------------------------------------------------------------
PyCUDA ERROR: The context stack was not empty upon module cleanup.
-------------------------------------------------------------------
A context was still active when the context stack was being
cleaned up. At this point in our execution, CUDA may already
have been deinitialized, so there is no way we can finish
cleanly. The program will be aborted now.
Use Context.pop() to avoid this problem.
-------------------------------------------------------------------
[1]    31869 abort      python test_driver.py

Any help would be very appreciated.

Many thanks,

Alan


-- 
Alan Wilter S. da Silva, D.Sc. - CCPN Research Associate
Department of Biochemistry, University of Cambridge.
80 Tennis Court Road, Cambridge CB2 1GA, UK.
>>http://www.bio.cam.ac.uk/~awd28<<
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