Active messages: a mechanism for integrated communication and computation
ISCA '92 Proceedings of the 19th annual international symposium on Computer architecture
User-space communication: a quantitative study
SC '98 Proceedings of the 1998 ACM/IEEE conference on Supercomputing
Fast Messages: Efficient, Portable Communication for Workstation Clusters and MPPs
IEEE Parallel & Distributed Technology: Systems & Technology
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Many programming interfaces which deal with peripherals (especially network peripherals) need to access the critical resources of the operating system,and system calls (or drivers) are generally used. Unfortunately,t he time spent on such system calls is often greater than those requested for the operations themselves. In the case of the MPC machine, most of these operations do not need an intervention from the system and resources may be available from user applications. Our programming interface provides different levels of integration in the kernel depending on the security and the performance expected by the administrator. This article presents PAPI user-level performance.