How can I integrate CUDA with Python?

How can I integrate CUDA with Python?

You can use libraries like PyCUDA or Numba to integrate CUDA with Python. Would you like a code example?

Yes, please provide a simple example using PyCUDA.

Sure! Here's a basic example:

import pycuda.autoinit
import pycuda.driver as drv

# Define a simple kernel
mod = drv.module_from_buffer(b'__global__ void add(int *a, int *b, int *c) { int idx = threadIdx.x; c[idx] = a[idx] + b[idx]; }')

# Prepare data
import numpy as np

a = np.array([1, 2, 3, 4], dtype=np.int32)
b = np.array([5, 6, 7, 8], dtype=np.int32)
c = np.empty_like(a)

# Allocate memory on the GPU
a_gpu = drv.mem_alloc(a.nbytes)
b_gpu = drv.mem_alloc(b.nbytes)
c_gpu = drv.mem_alloc(c.nbytes)

# Transfer data to the GPU
drv.memcpy_htod(a_gpu, a)
drv.memcpy_htod(b_gpu, b)

# Launch the kernel
mod.get_function('add')(a_gpu, b_gpu, c_gpu, block=(4,1,1))

# Transfer the result back to the host
drv.memcpy_dtoh(c, c_gpu)
print(c)  # Output: [6 8 10 12]

What are the prerequisites for using PyCUDA?

You need to have a compatible NVIDIA GPU, the CUDA toolkit installed, and the PyCUDA library. Would you like help with installation?