follow test13, 1. _multi_gpu.py 粗算子构建统一 C++ matvec 路径(单线程 nthreads=1 亦用 CudaSchurOp, 避免 Python matvec 构建大格子 50min+ 瓶颈; verify 全 PASS 确认正确); [opencode].
Advanced Computing Platform for Theoretical Physics
follow test13, 1. _multi_gpu.py 粗算子构建统一 C++ matvec 路径(单线程 nthreads=1 亦用 CudaSchurOp, 避免 Python matvec 构建大格子 50min+ 瓶颈; verify 全 PASS 确认正确); [opencode].
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