US 2014/0208043 A1 · SYNCHRONIZING PARALLEL APPLICATIONS IN AN ASYMMETRIC MULTI-PROCESSING SYSTEM

Abstract

A method for synchronizing parallel applications in a partitioned asymmetric multi-processing system having multiple independent levels of security is provided. Synchronized access to a shared data memory region is provided for a first application through a first instance of a para-virtualized user library linked against a first application in a first domain having a first security level. Synchronized access is provided to the shared data memory region for a second application in parallel with the first application through a second instance of the para-virtualized user library linked against the second application in the first domain. The second instance of the para-virtualized user library also accesses the synchronization structure. Access is prevented to the shared data memory region and the synchronization structure by other applications in one or more other domains having other levels of security per domain.

Claims20

Dependent claims

A method for synchronizing parallel applications in an asymmetric multi-processing system having multiple independent levels of security, the method comprising:

providing synchronized access to a shared data memory region for a first application through a first instance of a para-virtualized user library linked against the first application in a first domain having a first level of security, wherein the synchronized access is provided through a para-virtualized standard synchronization application programming interface implemented as a user library accessing a synchronization structure;
providing synchronized access to the shared data memory region for a second application in parallel with the first application through a second instance of the para-virtualized user library linked against the second application in the first domain having the first level of security, the second instance of the para-virtualized user library accessing the synchronization structure;
and
preventing access to the shared data memory region and the synchronization structure by other applications in one or more other domains having other levels of security per domain.

1 more element

An asymmetric multi-processing system having multiple independent levels of security, comprising:

a first domain having a first level of security;
and
one or more other domains having other levels of security per domain;
wherein the first domain comprises one or more processing cores, a synchronization memory region, and a shared data memory region, the first domain configured to:
provide synchronized access to the shared data memory region for a first application through a para-virtualized user library linked against the first application, wherein the synchronized access is provided through a para-virtualized standard synchronization application programming interface implemented as a user library accessing a synchronization structure of the synchronization memory region;
provide synchronized access to the shared data memory region for a second application in parallel with the first application through a second instance of the para-virtualized user library linked against the second application, the second instance of the para-virtualized user library accessing the synchronization structure;
and
prevent access to the shared data memory region and the synchronization structure by the one or more other domains.

5 more elements

Dependencies are inferred from the claim text.

Synchronizing parallel applications in an asymmetric multi-processing system

Life of this patent

Synchronizing parallel applications in an asymmetric multi-processing system

Life of this patent

Abstract

Claims20