A nuclear resource allocation method, device and many-core system

Abstract

The present invention provides a nuclear resource allocation method, device and many-core system, which are used to allocate nuclear resources in a many-core platform. The method includes: obtaining the number of idle cores required by user processes; finding a request that satisfies the number At least two dispersed core partitions, wherein each core partition is a collection of one or more cores and all cores in each core partition are idle cores; combining the at least two dispersed core partitions into a contiguous the core partitions; assigning the formed continuous core partitions to the user process. In this way, different cores in the continuous core partition assigned to the user process can directly perform process interaction, which improves the efficiency of inter-process communication; at the same time, it can effectively avoid the waste of core resources, improve the overall utilization of the processor and parallelism. processing power.

Description

technical field [0001] The present invention relates to the field of communication technology, in particular to a nuclear resource allocation method, device and many-core system. Background technique [0002] With the continuous development of computer technology, the processor has entered the multi-core / many-core era, increasing the number of schedulable cores in the computer system, assigning multiple threads in the same process to different cores to run in parallel, so that the multi-core can cooperate in parallel to complete specific tasks. In order to improve the utilization efficiency of multi-core / many-core processors and reduce application competition for core resources, cores can be physically partitioned to form multiple domains (representing core partitions). Each domain can contain multiple The cores of different domains can provide core resource sets of different domains to different applications to alleviate resource competition. [0003] In general, after co...

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Problems solved by technology

[0009] After core resource scheduling, different threads in the same process may be assigned to run on scattered cores that are far away. When information interaction between threads is required, it may have to pass through multiple cores that are running other tasks, resulting in Communication conflicts between threads, greatly reducing communication efficiency

In addition, the communication between threads can only be carried out after the core running other tasks is idle, which will also lead to low communication efficiency.

[0010] In addition, this method also lacks global and unified management of cores, which will generate a large number of scattered cores, resulting in the failure to allocate core resource partitions containing fewer core resources, and unable to use each core to respond to applications, resulting in core failures. The waste of resources affects the parallel processing capability of multi-core / many-core processors

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