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» Mpi on millions of Cores
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PVM
2010
Springer
14 years 8 months ago
Adaptive MPI Multirail Tuning for Non-uniform Input/Output Access
Multicore processors have not only reintroduced Non-Uniform Memory Access (NUMA) architectures in nowadays parallel computers, but they are also responsible for non-uniform access ...
Stephanie Moreaud, Brice Goglin, Raymond Namyst
EUROPAR
2009
Springer
15 years 4 months ago
Process Mapping for MPI Collective Communications
It is an important problem to map virtual parallel processes to physical processors (or cores) in an optimized way to get scalable performance due to non-uniform communication cost...
Jin Zhang, Jidong Zhai, Wenguang Chen, Weimin Zhen...
ICPADS
2010
IEEE
14 years 8 months ago
Hybrid Checkpointing for MPI Jobs in HPC Environments
As the core count in high-performance computing systems keeps increasing, faults are becoming common place. Checkpointing addresses such faults but captures full process images ev...
Chao Wang, Frank Mueller, Christian Engelmann, Ste...
IPPS
2009
IEEE
15 years 5 months ago
Designing multi-leader-based Allgather algorithms for multi-core clusters
The increasing demand for computational cycles is being met by the use of multi-core processors. Having large number of cores per node necessitates multi-core aware designs to ext...
Krishna Chaitanya Kandalla, Hari Subramoni, Gopala...
CSE
2011
IEEE
13 years 10 months ago
Performance Modeling of Hybrid MPI/OpenMP Scientific Applications on Large-scale Multicore Cluster Systems
In this paper, we present a performance modeling framework based on memory bandwidth contention time and a parameterized communication model to predict the performance of OpenMP, M...
Xingfu Wu, Valerie E. Taylor