Extended Data Fig. 3: Throughput-aware unfolded mapping and resource-aware folded mapping. | Nature

Extended Data Fig. 3: Throughput-aware unfolded mapping and resource-aware folded mapping.

From: Towards artificial general intelligence with hybrid Tianjic chip architecture

Extended Data Fig. 3

a, Unfolded mapping converts all topologies into a fully connected (FC) structure without reusing data. In CANN: Norm, normalization; r, firing rate; V, membrane potential. In LSTM: f/i/o, forget/input/output gate output; g, input activation; h/c, hidden/cell state; t, time step; x, external input. b, Folded mapping folds the network along the row dimension of feature maps (FMs) for resource reuse. We note that the weights are still unfolded along the column dimension to maintain parallelism, and wide FMs can be split into multiple slices, which are allocated into different FCores for concurrent processing. r0/1/2, row 0/1/2.

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