Blackwell moves matmul accumulation to Tensor Memory
Published on July 18, 2026, the post describes a 256 KB-per-SM area for Tensor Core results and, according to its author, a possible reduction in matmul issuance from 128 threads to one.
Published on July 18, 2026, the post presents Tensor Memory in Blackwell as a separate 256 KB-per-SM space for Tensor Core results. According to the author, this change can reduce the number of threads issuing a matmul operation from 128 to one; the post links the change to accumulator storage and the GPU thread model.
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