[PyCUDA] printf

[Bergtholdt, Martin]

Tesla 2070C

From: Bryan Catanzaro [mailto:bryan.catanzaro at gmail.com]
Sent: 25 March 2011 19:07
To: Bergtholdt, Martin
Cc: pycuda at tiker.net
Subject: Re: [PyCUDA] printf

What device are you running this on?

- bryan

On Mar 25, 2011, at 11:05 AM, "Bergtholdt, Martin" <martin.bergtholdt at philips.com<mailto:martin.bergtholdt at philips.com>> wrote:
Hi,

I'm trying to run the printf example in the wiki:

>>> import pycuda.driver as cuda
>>> import pycuda.autoinit
>>> from pycuda.compiler import SourceModule
>>>
>>> mod = SourceModule("""
...     #include <stdio.h>
...
...     __global__ void say_hi()
...     {
...       printf("I am %d.%d\\n", threadIdx.x, threadIdx.y);
...     }
...     """)
>>>
>>> func = mod.get_function("say_hi")
>>> func(block=(4,4,1))
>>>

Everything works fine, but I do not get any output on the last line. Any ideas what can go wrong here?

Cuda 3.2
Windows-7
pycuda.VERSION (2011, 1)
MSVC 9.0 2008 (32-bit)


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