CUDA and MPI

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1 2MPI and CUDA Before GPUDirectCPUMainMemChipsetGPUGPUMemory
What is GPUDirect?GPUDirect is an umbrella term for improving interoperability withthird-party devices (Especially cluster fabric hardware)Long-term goal is to reduce dependence on CPU for managingtransfersContains both programming model and system softwareenhancementsLinux only (for now)
Page 1 and 2: CUDA and MPIDale SouthardSenior Sol
Page 3 and 4: What You’ve Learned So Far….Use
Page 5 and 6: Zero-Copy Memory before CUDA 4.0Sin
Page 7: The DMA/RDMA ProblemCUDA driver all
Page 11 and 12: 1GPUDirect v1CPUChipsetGPUInfiniBan
Page 13 and 14: No-copy Pinning of System MemoryRed
Page 15 and 16: Unified Virtual AddressingEasier to
Page 18 and 19: Multiple GPUs Before NVIDIA GPUDire
Page 20 and 21: GPUDirect v2.0: Peer-to-Peer Commun
Page 22 and 23: Topology and Locality
Page 24 and 25: And More TopologyMemoryMemoryMemory

CUDA and MPI

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