fortran语言编写的用于相场计算的用于合金凝固的 关于并行运算的一些内容，入门知识-fortran language of some of the content on the phase field of parallel computing for the solidification of the calculation for getting started

算例为一个双刃端口二维板，采用相场断裂计算模型计算，即该UMAT子程序(As an example, a two-dimensional plate with double edge ports is calculated by using the phase field fracture calculation model, that is, the UMAT subroutine)