Virtuell gemeinsamer Speicher mit integrierter Laufzeitbeobachtung

Shared virtual memory provides a logically shared address space on distributed memory parallel computers. In order to enable efficient and comfortable development of application programs, a complete programming environment is necessary that contains a programming language as well as programming tools for debugging and optimization. Monitoring support supplies these programming tools with the required data. The dissertation first describes some existing systems with shared virtual memory. Then it introduces a new system called ASVM (Advanced Shared Virtual Memory) and its integrated monitoring support. An important innovation of ASVM is that the memory requirements for the management of shared virtual memory is restricted to a fixed part of a processing node's local memory. Moreover, ASVM's monitoring support gives detailed information about the behavior of application programs. It is possible to selectively activate parts of the monitoring support and exactly specify the monitoring data to be collected. This reduces the amount of monitoring data and the processing overhead for data collection. The thesis concludes with some fundamental performance data of ASVM and its integrated monitoring support as well as some results obtained using real application programs for shared virtual memory. (orig.)Available from TIB Hannover: RA 831(3199) / FIZ - Fachinformationszzentrum Karlsruhe / TIB - Technische InformationsbibliothekSIGLEDEGerman