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GTC ON-DEMAND

HPC and Supercomputing
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MVAPICH2-GDR: Pushing the Frontier of Designing MPI Libraries Enabling GPUDirect Technologies
Abstract:
Learn how MVAPICH2-GDR library is enabling support for different GPUDirect technologies to simplify the task of porting message passing interface (MPI) applications to supercomputing clusters with NVIDIA GPUs. MVAPICH2-GDR 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. Recent advances in MVAPICH2 include support of GDR_Async, MPI-3 RMA using GPUDirect RDMA, usage of fast GDRCOPY, Non-Blocking Collectives using GDR and Core-Direct, and much more. Performance results with micro-benchmarks and applications will be presented using MPI and CUDA/OpenACC. Performance impact of application co-design using MVAPICH2-GDR will also be presented.
 
Topics:
HPC and Supercomputing, Tools & Libraries, Performance Optimization
Type:
Talk
Event:
GTC Silicon Valley
Year:
2016
Session ID:
S6411
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