Implementation of High-Order Multireference Coupled-Cluster Methods on Intel Many Integrated Core Architecture

Journal of Chemical Theory and Computation
Edoardo Aprà, Karol Kowalski

Abstract

In this paper we discuss the implementation of multireference coupled-cluster formalism with singles, doubles, and noniterative triples (MRCCSD(T)), which is capable of taking advantage of the processing power of the Intel Xeon Phi coprocessor. We discuss the integration of two levels of parallelism underlying the MRCCSD(T) implementation with computational kernels designed to offload the computationally intensive parts of the MRCCSD(T) formalism to Intel Xeon Phi coprocessors. Special attention is given to the enhancement of the parallel performance by task reordering that has improved load balancing in the noniterative part of the MRCCSD(T) calculations. We also discuss aspects regarding efficient optimization and vectorization strategies.

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Citations

May 18, 2020·The Journal of Chemical Physics·E ApràR J Harrison
Jan 6, 2021·Journal of Chemical Theory and Computation·László Gyevi-NagyPéter R Nagy
Nov 28, 2019·Journal of Chemical Theory and Computation·László Gyevi-NagyPéter R Nagy

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