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ut-parla / Parla.py

A Python based programming system for heterogeneous computing
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fix: bug on writeback subarray deadlock #140

Closed yinengy closed 1 year ago

yinengy commented 1 year ago

Example: at begin: CPU has complete copy, GPU 0 has dirty subarray

then: GPU 0 read the whole array what happen: GPU 0 subarray write back to CPU, then GPU 0 copy back from CPU previous logic has a deadlock that CPU wait on GPU 0 to be ready and GPU 0 wait on CPU to be ready.