Shared memory type coprocessor-oriented heap memory management method and device

Abstract

The invention relates to a shared memory type coprocessor-oriented heap memory management method and device. The method comprises the steps that before a co-processing end program is executed, a large continuous heap memory space is applied through a first interface function, a virtual address of the applied heap memory space is converted into a physical address, the physical address is transmitted to the co-processing end program, and the applied heap memory space is organized into an available linked list and an allocated linked list; when a coprocessor end program applies for memory use, searching for available memory allocation of a first block size from an available linked list head through a second interface function, and adding a newly allocated memory into a linked list tail of the allocated linked list; in the program execution process of the coprocessor end, releasing the stack memory space of the coprocessor end through a third interface function, and adding the newly released memory into the available linked list; after the coprocessor end program is executed, the coprocessor heap memory space is cleaned according to the virtual address through the fourth interface function.

Description

technical field [0001] The present application relates to the field of computer technology, in particular to a heap memory management method and device for shared memory coprocessors. Background technique [0002] Heterogeneous computing has been continuously developed in the field of high-performance computing due to its high performance and high energy efficiency, and more and more co-processors have emerged, such as GPU (Graphics Processing Unit, Graphics Processing Unit), FPGA (Field-programmable Gate Array, Field Programmable Logic Gate Array) and so on. Usually, the coprocessor is connected to the host CPU (Central Processing Unit, central processing unit) in the form of PCIe (Peripheral Component Interconnect Express, fast peripheral component interconnection) peripherals, and has its own independent storage unit, which cannot be directly connected to the CPU. Shared memory is a separate memory coprocessor. The separate-memory coprocessor needs to explicitly move da...

AI Technical Summary

Problems solved by technology

However, the existing shared memory coprocessor cannot run the operating system, does not have the ability to convert virtual and real addresses, and can only recognize physical addresses

Therefore, the coprocessor itself does not have dynamic memory management capabilities, and cannot meet the demand for using dynamic memory on the coprocessor side.

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