Created
November 23, 2023 01:56
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Cuda + Python
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import numpy as np | |
import cupy as cp | |
print(cp.cuda.is_available()) | |
# Limitando o tamanho de memória a ser usado | |
mempool = cp.get_default_memory_pool() | |
with cp.cuda.Device(0): | |
mempool.set_limit(size=1024**3) # 1GB | |
# Alocando arrays na CPU e na GPU | |
x_cpu = np.array([1,2,3]) | |
l2_cpu = np.linalg.norm(x_cpu) | |
x_gpu = cp.array([1,2,3,]) | |
l2_gpu = cp.linalg.norm(x_gpu) | |
# Somando matriz na GPU | |
l1_matriz = cp.array([1,2,4,8,16,32,64]) | |
l2_matriz = cp.array([128,256,512,1024,2048,3072,4096]) | |
l3_matriz = l1_matriz + l2_matriz | |
l4_matriz = l3_matriz * 1024 | |
print(l4_matriz) | |
# Definindo um kernel personalizado | |
diferenca_do_quadrado = cp.ElementwiseKernel( | |
'float32 x, float32 y', | |
'float32 z', | |
'z = (x - y) * (x - y)', | |
'squared_diff' | |
) | |
x = cp.arange(1024, dtype=np.float32).reshape(64, 16) | |
y = cp.arange(16, dtype=np.float32) | |
print(diferenca_do_quadrado(x, y)) |
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