Data transmission method and device, computing equipment and storage medium

Abstract

The invention discloses a data transmission method and device, computing equipment and a storage medium, and relates to the technical field of computers.The method comprises the steps that the computing equipment obtains a shared memory address of target equipment from the storage medium in response to a received data transmission request from the target equipment, the shared memory address refers to a unique address of a shared memory in the target equipment; wherein the shared memory and the global memory in the target device both adopt a unified addressing technology, so that the shared memory is directly connected to the PCIe bus through the shared memory address. And the computing device initiates a data transmission operation to the shared memory address through the PCIe bus. In this manner, the GMEM and the SMEM use a unified address space, and the address of the SMEM is exposed to the outside. It means that both the CPU and the RDMA controller can access the two types of memories through a single address space. The technical problem of low data transmission efficiency in the prior art is solved.