May I Know where is this table from？
I found this table at CUDA for Tegra
The cache in the CPU column indicates the CPU cache.
The one in the iGPU column indicates the GPU cache.
Thank you for your response, but I still have doubts. Does this mean that when a function uses Pinned host memory and is accessed by the iGPU, it doesn’t utilize the L2 or L1 cache?
Pinned is a page-lock CPU memory.
It doesn’t have a copy on GPU so it won’t be cached when GPU tries to access it.
Thank you, but where does the unified memory exist in the igpu, on the cache? I think the cache is too small to hold all the content, or the cache is only part of it.
No. All the data is stored in the memory.
But cached indicates it can use CPU/GPU cache to allow fast access.
GPU cache mechanism is similar to the CPU version.
Thanks, i get it。
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