Memory consumption and execution time

In fact, fropho requires large memory area and large execution time. One reason belongs the non-clever algorithm such that most of the elements in global matrix are zero. Many symmetry operations and large supercell need large memory area. In my experience, though it's a rare case, the memory consumption exceeds 2 GB and we requires 64-bit environment. The execution time will be more than one hour. In usual cases, we don't have to worry about memory consumption and execution time. So we believe that we should keep the non-clever code to maintain the readability and to have rapid development with less bugs ;-).

togo 2009-02-12
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