perf(dpa4): batch the SO3/grid contractions over (D,F); keep use_amp through pt_expt assembly - #5960

perf(dpa4): batch the SO3/grid contractions over (D,F); keep use_amp through pt_expt assembly#5960

wanghan-iapcm merged 19 commits into

deepmodeling:masterdeepmodeling/deepmd-kit:masterfrom

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