31 citations · 73 across the 5 of their papers we have counts for
7 papers
Collectives in hybrid MPI+MPI code: design, practice and performance
Huan Zhou, Jose Gracia, Naweiluo Zhou +1
The use of hybrid scheme combining the message passing programming models for inter-node parallelism and the shared memory programming models for node-level parallelism is widely s…
MPI Collectives for Multi-core Clusters: Optimized Performance of the Hybrid MPI+MPI Parallel Codes
Huan Zhou, Jose Gracia, Ralf Schneider
The advent of multi-/many-core processors in clusters advocates hybrid parallel programming, which combines Message Passing Interface (MPI) for inter-node parallelism with a shared…
Performance and energy consumption of HPC workloads on a cluster based on Arm ThunderX2 CPU
Filippo Mantovani, Marta Garcia-Gasulla, José Gracia +5
In this paper, we analyze the performance and energy consumption of an Arm-based high-performance computing (HPC) system developed within the European project Mont-Blanc 3. This sy…
A Bandwidth-saving Optimization for MPI Broadcast Collective Operation
Huan Zhou, Vladimir Marjanovic, Christoph Niethammer +1
The efficiency and scalability of MPI collective operations, in particular the broadcast operation, plays an integral part in high performance computing applications. MPICH, as one…
Leveraging MPI-3 Shared-Memory Extensions for Efficient PGAS Runtime Systems
Huan Zhou, Kamran Idrees, José Gracia
The relaxed semantics and rich functionality of one-sided communication primitives of MPI-3 makes MPI an attractive candidate for the implementation of PGAS models. However, the pe…
DART-MPI: An MPI-based Implementation of a PGAS Runtime System
Huan Zhou, Yousri Mhedheb, Kamran Idrees +4
A Partitioned Global Address Space (PGAS) approach treats a distributed system as if the memory were shared on a global level. Given such a global view on memory, the user may prog…