cuda-mandelbrot | simple CUDA program to generate an image | Computer Vision library
kandi X-RAY | cuda-mandelbrot Summary
kandi X-RAY | cuda-mandelbrot Summary
A very simple CUDA program to generate an image of the Mandelbrot set, very similar to the OpenCL program on purpose.
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QUESTION
Background: I'm trying to create a simple bootstrap function for sampling means with replacement. I want to parallelize the function since I will eventually be deploying this on data with millions of data points and will want to have sample sizes much larger. I've ran other examples such as the Mandelbrot example. In the code below you'll see that I have a CPU version of the code, which runs fine as well.
I've read several resources to get this up and running:
The issue: This is my first foray into CUDA programming and I believe I have everything setup correctly. I'm getting this one error that I cannot seem to figure out:
...ANSWER
Answered 2021-May-02 at 00:33You seem to have at least 4 issues:
- In your kernel code,
rand_idx_arry
is undefined. - You can't do
.mean()
in cuda device code - Your kernel launch config parameters are reversed.
- Your kernel had an incorrect range for the grid-stride loop.
dt_array.shape[0]
is 50, so you were only populating the first 50 locations in your gpu output array. Just like your host code, the range for this grid-stride loop should be the size of the output array (which isboot_samp
)
There may be other issues as well, but when I refactor your code like this to address those issues, it seems to run without error:
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