Over at ACM QUEUE, Christoph Lameter has posted an overview of NUMA (Non-Uniform Memory Access) in today’s computing architectures.
As the trend toward improving system performance by bringing memory nearer to processor cores continues, NUMA will play an increasingly important role in system performance. Modern processors have multiple memory ports, and the latency of access to memory varies depending even on the position of the core on the die relative to the controller. Future generations of processors will have increasing differences in performance as more cores on chip necessitate more sophisticated caching. As the access properties of these different kinds of memory continue to diverge, operating systems may need new functionality to provide good performance.
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A new Linux Foundation Collaborative Project has the potential to advance science through the use of open source software.
The Linux Foundation announced this week that it is joining forces with the life sciences information framework OpenBEL, an open source software project that captures, integrates, stores, and shares biological knowledge through organizations.
