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【求助】求高人給我發(fā)一份GEMC的模擬程序
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小弟,最近在學(xué)習(xí)MC,覺得GEMC對(duì)我比較有用,可是在網(wǎng)上,我怎么都找不著。 如果有人有的話,能否給我發(fā)一份呢?萬分感謝! 我的郵箱地址:zw198204@163.com |
» 搶金幣啦!回帖就可以得到:
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答應(yīng)過的事情, 雖然覺得其實(shí)對(duì)樓主幫助也不大. 因?yàn)槲也豢赡芙o你寫一個(gè)完整的GibbsMC, 如果你自己不努力去理解, 那么什么都是白搭. 這是大體結(jié)構(gòu). 按照需要填充就是了. 應(yīng)該此貼不會(huì)再更新了. 文件名: GibbsMC.f90 文件內(nèi)容如下: PROGRAM MC USE global IMPLICIT NONE ! Local INTEGER :: ibox, iblock, istep INTEGER :: ts,tf,rate DOUBLE PRECISION :: engtst, virtst, engerr ! Initialize the random number generator CALL seed_random(idum) ! Read the input file CALL read_input ! Get the start time CALL system_clock(count=ts, count_rate=rate) ! Perform minimization CALL relax ! Calculate energy and virial DO ibox = 1,n_box CALL eng_total(ibox,energy(ibox),virial(ibox)) CALL write_config(ibox,0) ENDDO ! Loop over the blocks DO iblock = 1,n_blocks ! Reset basic statistics CALL stats(1,0,0) ! Reset optional statistics IF(opt .EQ. 1) CALL sample(1,0,0) ! Loop over the steps per block DO istep = 1,n_steps ! Perform a trial move CALL trial_move(iblock,istep) ! Accumulate basic statistics CALL stats(2,iblock,istep) ! Accumulate optional statistics IF(opt .EQ. 1) call sample(2,iblock,istep) ! End loop over the steps per block ENDDO ! Average basic statistics for iblock CALL stats(3,iblock,0) ! Average optional statistics for iblock IF(opt .EQ. 1) call sample(3,iblock,0) ! Update the max values (disp, volchng, etc) CALL update_max ! Print status IF(iblock .LE. n_equil) THEN IF(iblock .EQ. 1) WRITE(*,'(A)')'Equilibration stage... ' IF(MOD(NINT(100.0d0*DBLE(iblock)),10*n_equil) .EQ. 0)& &WRITE(*,'(I0,A3)')NINT(100.0d0*DBLE(iblock)/DBLE(n_equil)),'% ' IF(iblock .EQ. n_equil) WRITE(*,*)'' ELSE IF(iblock .EQ. n_equil + 1) WRITE(*,'(A)')'Production stage... ' IF(MOD(NINT(100.0d0*DBLE(iblock-n_equil)),10*(n_blocks-n_equil)).EQ. 0)& &WRITE(*,'(I0,A3)')NINT(100.0d0*DBLE(iblock-n_equil)/DBLE(n_blocks-n_equil)),'% ' IF(iblock .EQ. n_blocks) WRITE(*,*)'' ENDIF ! Check the total and updated energy consistency for each box (every 10 blocks) IF(MOD(iblock,1) .EQ. 0) THEN DO ibox = 1,n_box CALL eng_total(ibox,engtst,virtst) engerr = dABS((engtst - energy(ibox))) IF (engerr .GE. 1.0d-5) THEN WRITE(*,*) 'WARNING: LARGE ERROR BETWEEN THE TOTAL AND UPDATED ENERGY' WRITE(*,'(A7,I0,A6,I0,A10,F20.8,A10,F20.8)')& &'BLOCK: ',iblock,' BOX: ',ibox,' UPD ENG: ',energy(ibox),' TOT ENG: ',engtst ENDIF ENDDO ENDIF ! End loop over the blocks ENDDO ! Get the finish time CALL system_clock(count=tf, count_rate=rate) ! Write the elapsed time to screen CALL time_elapsed(tf,ts,rate) ! Write basic statistics CALL stats(4,0,0) ! Write optional statistics IF(opt .EQ. 1) CALL sample(4,n_blocks+1,0) ! Write the final configurations DO ibox = 1,n_box CALL write_config(ibox,n_blocks+1) ENDDO END PROGRAM MC |
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