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momentu335新蟲 (小有名氣)
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[求助]
MD分子動力學NVT計算任務老是失敗,求助大神幫幫忙
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在做了10000ps的幾何優(yōu)化后,模擬NVT,總是出現(xiàn)這個錯誤,求大神幫幫忙,謝謝啦! Forcite ------- Task : Dynamics Version : 8.0 Build date : Dec 5 2014 Host : localhost.localdomain Threads : Parallel 39 Operating system : linux Task started : Wed Apr 10 11:23:16 2019 ---- Dynamics parameters ---- Ensemble : NVT Temperature : 343.00 K Control method : Nose Q ratio : 0.0100000 Timestep : 1.00 fs Number of steps : 1200000 Duration : 1200 ps Initial velocities : Random Random number seed : 1554866597 ---- Energy parameters ---- Forcefield : COMPASSII (Version 1.2) Charges : Forcefield assigned Electrostatic terms: Summation method : Ewald Accuracy : 0.001 kcal/mol Buffer width : 0.5 A van der Waals terms: Summation method : Atom based Truncation method : Cubic spline Cutoff distance : 12.5 A Spline width : 1 A Buffer width : 0.5 A ---- Thermostat ---- Nose mass parameter, Q mass: 121.974 kcal/mol*ps^2 ---- Constraints ---- Position constraints : 5855 Dynamics calculation - Deviation in total energy (265293 kcal/mol) between successive steps was greater than the specified maximum (50000 kcal/mol). Try relaxing the structure with geometry optimization, reducing the time step, reducing the temperature or a combination of these. Task terminated : Wed Apr 10 11:24:03 2019 Total CPU time used by Forcite: 20 seconds (20.23s) Termination status : Error |
金蟲 (正式寫手)
金蟲 (正式寫手)
新蟲 (小有名氣)
金蟲 (正式寫手)
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