CUDA: How to reuse kernels in multiple files (for unit testing)

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By : user3864440

Date : January 10 2021, 01:47 PM

With these it helps Create launcher functions and reference them from a header which will be included from multiple locations.
In .cu file:

code :

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Multiple kernels in cuda 4.0

By : hugmin42

Date : March 29 2020, 07:55 AM

should help you out To use multiple GPUs from a single thread, you can switch between cuda contexts (each of which is bound is bound to a GPU) and launch kernels asynchronously. In effect you will be running multiple kernels across multiple GPUs this way.
However if you have cards with compute capability > 2.0, you can also run kernels concurrently as shown in the comments above. You can find the post about concurrent kernel execution over here.

launching multiple kernels cuda

By : Feray

Date : March 29 2020, 07:55 AM

may help you . You are defining the same variables twice. You could e.g. eliminate that error simply by limiting the scope of each definition through additional blocks ({...} pairs):

code :

int k,sim_step;
int counter_top,counter_bottom;
............
...................

for(k=0;k<=sim_step;k++)
{  
    {
        dim3 gridDim(1,1);
        dim3 blockDim(counter_top,1,1); 

        agent_movement_top<<<gridDim,blockDim>>>(args..)  ;
    }
    {
        dim3 gridDim(1,1);
        dim3 blockDim(counter_bottom,1,1);  

        agent_movement_bot<<<gridDim,blockDim>>>(args...);
    }
}

Can i just define CUDA kernels in .h files?

By : Lynn Hoffman

Date : March 29 2020, 07:55 AM

it helps some times The rules and behavior here aren't really any different conceptually than what is permissible in C or C++ coding.
For a file that is explicitly included in another file via an #include directive, the file name, and indeed the file extension - .cu, .h, .cuh. .hpp or what have you, really doesn't matter. That is just a directive to the compiler to pick up that file, and insert it at this point in the source, just as if it had been typed there.

CUDA FFT plan reuse across multiple 'overlapped' CUDA Stream launches

By : Dorian Gray

Date : March 29 2020, 07:55 AM

seems to work fine
What I'm doing is to create and lauch a new CUDA stream as a result of a complete pulse transmission.

Where to define CUDA kernels in a program with multiple source files

By : chandra putra

Date : March 29 2020, 07:55 AM

I hope this helps . The program you describe is still very simple (which is why I'm able to venture an answer... that also ignores your code).
What I think you need to do is the following: