如何配置PyCuda代码与Visual Profiler? [英] How to profile PyCuda code with the Visual Profiler?
问题描述
当我创建一个新的会话,并告诉Visual Profiler启动我的python / pycuda脚本时,我得到以下错误信息:程序执行#1失败,退出代码:255
这些是我的偏好:
- 发布:
python/pathtopycudafile/mysuperkernel.py
- 工作目录:
/ pathtopycudafile / mysuperkernel.py code>
- 参数:
[empty]
我在Ubuntu 10.10下使用CUDA 4.0。 64位。分析编译示例的工作原理。
p.s。我知道这个问题如何在Linux中剖析PyCuda代码? ,但似乎是一个不相关的问题。
最少例
pycuda示例。 py:
import pycuda.autoinit
import pycuda.driver as drv
import numpy
from pycuda.compiler import SourceModule
mod = SourceModule(
__global__ void multiply_them(float * dest,float * a,float * b)
{
const int i = threadIdx.x;
dest [i] = a [i] * b [i];
}
)
multiply_them = mod.get_function(multiply_them)
a = numpy.random.randn(400).astype(numpy.float32)
b = numpy.random.randn(400)。 astype(numpy.float32)
dest = numpy.zeros_like(a)
multiply_them(
drv.Out(dest),drv.In(a),drv.In b),
block =(400,1,1),grid =(1,1))
pycuda.autoinit.context.detach()
示例设置
错误消息
将可执行文件指定给compute profiler的方式有问题。如果我在你发布的代码的顶部放置一个哈希bang线:
#!/ usr / bin / env python
然后给python文件可执行权限,计算profiler运行代码而不投诉,我得到这样: / p>
>
When I create a new session and tell the Visual Profiler to launch my python/pycuda scripts I get following error message: Execution run #1 of program '' failed, exit code: 255
These are my preferences:
- Launch:
python "/pathtopycudafile/mysuperkernel.py"
- Working Directory:
"/pathtopycudafile/mysuperkernel.py"
- Arguments:
[empty]
I use CUDA 4.0 under Ubuntu 10.10. 64Bit. Profiling compiled examples works.
p.s. I am aware of SO question How to profile PyCuda code in Linux?, but seems to be an unrelated problem.
Minimal example
pycudaexample.py:
import pycuda.autoinit
import pycuda.driver as drv
import numpy
from pycuda.compiler import SourceModule
mod = SourceModule("""
__global__ void multiply_them(float *dest, float *a, float *b)
{
const int i = threadIdx.x;
dest[i] = a[i] * b[i];
}
""")
multiply_them = mod.get_function("multiply_them")
a = numpy.random.randn(400).astype(numpy.float32)
b = numpy.random.randn(400).astype(numpy.float32)
dest = numpy.zeros_like(a)
multiply_them(
drv.Out(dest), drv.In(a), drv.In(b),
block=(400,1,1), grid=(1,1))
pycuda.autoinit.context.detach()
Example settings
Error message
There is something wrong with the way you are specifying the executable to the compute profiler. If I put a hash bang line at the top of your posted code:
#!/usr/bin/env python
and then give the python file executable permissions, the compute profiler runs the code without complaint and I get this:
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