Deployment and Scheduling Synthesis for Mixed-Critical Shared-Memory Applications

2013 ◽  
Author(s):  
Sebastian Voss ◽  
Bernhard Schatz
Keyword(s):  
Shared Memory ◽  
Memory Applications

NestedMP: Enabling cache-aware thread mapping for nested parallel shared memory applications

2016 ◽  
Vol 51 ◽  
pp. 56-66 ◽  
Author(s):  
Jiangzhou He ◽  
Wenguang Chen ◽  
Zhizhong Tang
Keyword(s):  
Shared Memory ◽  
Memory Applications ◽  
Thread Mapping

scholarly journals Memory Access Behavior Analysis of NUMA-Based Shared Memory Programs

2002 ◽  
Vol 10 (1) ◽  
pp. 45-53 ◽  
Author(s):  
Jie Tao ◽  
Wolfgang Karl ◽  
Martin Schulz
Keyword(s):  
Shared Memory ◽  
Data Locality ◽  
Memory Access ◽  
Remote Memory ◽  
Data Layout ◽  
Performance Improvements ◽  
Significant Performance ◽  
Working Set ◽  
Memory Accesses ◽  
Memory Applications

Shared memory applications running transparently on top of NUMA architectures often face severe performance problems due to bad data locality and excessive remote memory accesses. Optimizations with respect to data locality are therefore necessary, but require a fundamental understanding of an application's memory access behavior. The information necessary for this cannot be obtained using simple code instrumentation due to the implicit nature of the communication handled by the NUMA hardware, the large amount of traffic produced at runtime, and the fine access granularity in shared memory codes. In this paper an approach to overcome these problems and thereby to enable an easy and efficient optimization process is presented. Based on a low-level hardware monitoring facility in coordination with a comprehensive visualization tool, it enables the generation of memory access histograms capable of showing all memory accesses across the complete address space of an application's working set. This information can be used to identify access hot spots, to understand the dynamic behavior of shared memory applications, and to optimize applications using an application specific data layout resulting in significant performance improvements.

Dynamic thread mapping of shared memory applications by exploiting cache coherence protocols

2014 ◽  
Vol 74 (3) ◽  
pp. 2215-2228 ◽  
Author(s):  
Eduardo H.M. Cruz ◽  
Matthias Diener ◽  
Marco A.Z. Alves ◽  
Philippe O.A. Navaux
Keyword(s):  
Shared Memory ◽  
Cache Coherence ◽  
Cache Coherence Protocols ◽  
Coherence Protocols ◽  
Memory Applications ◽  
Thread Mapping
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