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Altera_Forum
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8 years ago

Why does one single load/store consume much RAMs?

Hi, when I design OpenCL and run aocl, it reports that one single load consume 13 RAMs and one single store consume 16 RAMs. e.g __kernel void top_kernel(__global restrict volatile int *a,...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
8 years ago

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The RAMs are used as FIFO buffers to minimize the negative effect of stalls caused by off-chip memory accesses which can have variable latency. There are also some extra RAMs used per off-chip memory access as a private cache, but since your kernel arguments have been defined as volatile, that cache will not be used.

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Thanks for your reply.

Can we disable or decrease the RAM usage?