Method for quickening solving of mesoscopic scale physical problem by using graphic processing unit (GPU)
A problem-solving and systematic technology, applied in the field of high-performance computing, can solve problems such as cost and heavy initialization of Hamiltonian matrix, and achieve the effect of simple algorithm, easy implementation and expansion, and accelerated solution speed
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[0034] In order to clarify the objectives, technical solutions and advantages of the present invention, the key steps in the present invention will be described in detail in conjunction with the accompanying drawings.
[0035] as attached figure 1 As shown, the corresponding relationship between the problem space involved in the present invention and the calculation thread in the GPU is given. In general, using Legendre ( ), Bezier ( ) or Laguerre ( ) polynomial as basis vector Containing at least two indicators n, m requires all instances, so each Hamiltonian matrix element Contains four index dimensions, so it can be considered that the problem space of the mesoscopic system is four-dimensional. We take the Hamiltonian matrix element constitute our problem space.
[0036] According to the current CUDA architecture, the thread space of the GPU is divided into a triple structure of grid, block and thread. For simplicity, the (q, p) variables of the problem space ca...
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