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[交流]
【求助】請教下gulp里的一些問題
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用Gulp幾何優(yōu)化加壓后的納米線,結(jié)果出現(xiàn)這種問題 **** Conditions for a minimum have not been satisfied. However **** **** no lower point can be found - treat results with caution **** **** unless gradient norm is small (less than 0.1) **** Final enthalpy = -2119.27165375 eV Final Gnorm = 0.38259661 這是什么問題? gin文件: opti conp conse qok nomod pres spat prop pressure 1 GPa title GULP calculation from Materials Studio for tri2 end cell 50.000000 50.000000 36.438080 90.000000 90.000000 90.000000 1 1 1 1 1 1 .... .... .... ....省略 .... .... Species Ga1 core Ga N1 core N spacegroup P 1 library tersoff output movie arc tri2 請教各位高人 ... 謝謝了先 |
» 搶金幣啦!回帖就可以得到:
+3/1724
+1/632
+1/457
+1/92
+1/84
+1/75
+2/50
+1/36
+1/33
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**** Conditions for a minimum have not been satisfied. However **** **** no lower point can be found - treat results with caution **** **** unless gradient norm is small (less than 0.1) **** 你把這句英文翻譯一下不就知道是什么意思了嗎? 視情況稍微改變一下有關(guān)參數(shù),或者算法,或者起始構(gòu)型等,繼續(xù)運算吧。 Gulp是個很好的工具,但是也不是說有了這個程序就解決一切問題。實際上優(yōu)化工作往往不能很快成功,因為我們面對的優(yōu)化問題總是很復雜,很多情況下計算結(jié)果是不收斂的。要經(jīng)過反反復復的試算才行。 |
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