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GTC ON-DEMAND

HPC and Supercomputing
Presentation
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Latest Advances in MVAPICH2 MPI Library for NVIDIA GPU Clusters with InfiniBand
Abstract:

Learn about the latest developments in MVAPICH2 library that simplifies the task of porting Message Passing Interface (MPI) applications to supercomputing clusters with NVIDIA GPUs. MVAPICH2 supports MPI communication directly from GPU device memory and optimizes it using various features offered by the CUDA toolkit. Various optimizations are integrated transparently under standard MPI API, for better programmability. Recent advances in MVAPICH2 include designs for MPI-3 RMA using GPUDirect RDMA, usage of fast GDRCOPY library, framework for MPI Datatype processing using CUDA kernels, and more. Performance results with micro-benchmarks and applications will be presented using MPI and CUDA/OpenACC. Impact of processor affinity to GPU and network affecting the performance will be presented.

 
Topics:
HPC and Supercomputing, Tools & Libraries, Data Center & Cloud Infrastructure
Type:
Talk
Event:
GTC Silicon Valley
Year:
2015
Session ID:
S5461
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