DMA transfer method for single instruction multithreading mode in gpdsp
A transmission method and multi-threading technology, which is applied in the field of DMA transmission for single-instruction multi-threading mode in GPDSP, can solve the problems of inability to meet multi-thread parallel execution, small bit width, insufficient calculation accuracy and addressing space, etc. Parameter configuration time, high throughput, and the effect of improving execution speed
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[0041] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.
[0042] The invention is a DMA data transmission method oriented to single instruction multithread (Single Instruction, Multiple Threads, SIMT) mode, which is realized on the basis of traditional DMA technology.
[0043] In order to support the transmission method, the present invention firstly adds a SIMT data transmission flag to the traditional DMA parameters. When the flag is valid, it indicates that the DMA will perform data transmission oriented to the single-instruction multi-thread mode. The vector operation unit VPU includes X processing units PE, and each processing unit corresponds to a storage bank of the in-core vector storage unit VM. The data of the SIMT program is initially stored in the out-of-core storage non-regularly, and the address changes of the data entering the same bank of the VM have specific rules. To this en...
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