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Help-wanted Issue: 使用CUDA编译MegEngine后, 在GPU上的tensor的get_memory_ptr返回的指针无法直接操作，而需要通过CUDA接口操作 about megengine HOT 3 CLOSED

Tumb1eweed avatar Tumb1eweed commented on June 11, 2024
Help-wanted Issue: 使用CUDA编译MegEngine后, 在GPU上的tensor的get_memory_ptr返回的指针无法直接操作，而需要通过CUDA接口操作

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Comments (3)

megenginebot avatar megenginebot commented on June 11, 2024

非常感谢您的 Issue！请关注此 Issue，避免漏掉反馈。

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cqchu avatar cqchu commented on June 11, 2024

是的，出于性能的考量，megengine 现在显存分配都是使用的 cudaMalloc，想问下是有什么需求需要在 CPU 上去修改 GPU memory 呢？

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Tumb1eweed avatar Tumb1eweed commented on June 11, 2024

是的，出于性能的考量，megengine 现在显存分配都是使用的 cudaMalloc，想问下是有什么需求需要在 CPU 上去修改 GPU memory 呢？

哦倒没有什么需求 只是用法习惯上可能比较麻烦而已 访问gpu时需要再加一层cuda的接口访问 如果是因为性能的话就可以理解了 谢谢解答！

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