The implementation of a Monte Carlo code for simulations of liquid crystal lattice models on the Quadrics massively parallel SIMD supercomputer is described. The use of a Quadrics with 512 processors is proving essential in studying the nematic–isotropic phase transition to an unprecedented level of accuracy using more than 10 6 particles. Here some tests on the Lebwohl–Lasher model with and without an applied field are presented.
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Boschi et al. (1997) studied this question.
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