Towards OpenUCX and GPUDirect Technology Support for the Angara Interconnect

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July 13, 2026

Biologists Discover Unique Properties of MiR-93-5p MicroRNA in Prostate Cancer

Researchers at the International Laboratory of Microphysiological Systems of the HSE Faculty of Biology and Biotechnology investigated how different isoforms of the same microRNA influence gene function in prostate adenocarcinoma. The study found that in some cases, microRNAs can reinforce each other’s effects by targeting and suppressing the same genes. This finding offers a fresh perspective on the molecular mechanisms underlying tumour development and on the search for disease biomarkers. The results have been published in PeerJ.

July 13, 2026

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July 9, 2026

HSE Economists Use Search Queries to Forecast Birth Rates

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Towards OpenUCX and GPUDirect Technology Support for the Angara Interconnect

P. 591–603.

Timofeev A., Khalilov M., Polyakov D.

Modern supercomputers consist of thousands of GPUs interconnected by high-speed HPC fabric. Angara interconnect supports Remote Direct Memory Access (RDMA) semantic, hence making it promising fabric solution for GPU-based supercomputers with a large amount of high-bandwidth RAM. Within this work we extend Angara interconnect low-level API allowing one transparently register (pin) GPU and user-space memory, hence enabling zero-copy approach and GPUDirect RDMA support. We present our implementation of Angara interconnect support within the state-of-the-art OpenUCX and OpenMPI communication stack. Memcpy function optimized for AMD GPU achieves up to 10×10× bandwidth speed up for medium to large MPI messages. With the help of Rendezvous protocol and our memory registration API the MPI bandwidth is increased by up to 68×

Language: English

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Keywords: GPUDirect

In book

Supercomputing: 8th Russian Supercomputing Days, RuSCDays 2022, Moscow, Russia, September 26–27, 2022, Revised Selected Papers

Vol. 13708. , Springer, 2022.