The influence of random number generation in dissipative particle dynamics simulations using a cryptographic hash function.

ABSTRACT: The tiny encryption algorithm (TEA) is widely used when performing dissipative particle dynamics (DPD) calculations in parallel, usually on distributed memory systems. In this research, we reduced the computational cost of the TEA hash function and investigated the influence of the quality of the random numbers generated on the results of DPD calculations. It has already been established that the randomness, or quality, of the random numbers depend on the number of processes from internal functions such as SHIFT, XOR and ADD, which are commonly referred to as "rounds". Surprisingly, if we choose seed numbers from high entropy sources, with a minimum number of rounds, the quality of the random numbers generated is sufficient to successfully perform accurate DPD simulations. Although it is w

SUBMITTER: Okada K 

PROVIDER: S-EPMC8078758 | biostudies-literature | 2021

REPOSITORIES: biostudies-literature