call mxCopyPtrToReal8(x_pr,x,size) call times2(size,x,y) call mxCopyReal8ToPtr(y,y_pr,size) 使用%val结构(Fortran 90)写法: y_pr=mxGetPr(plhs(1)) x_pr=mxGetPr(prhs(1)) call times2(size,%val(x_pr),%val(y_pr)) 1.7 Fortran语言MEX文件中对Matlab函数的调用 在Fortran语言MEX文件...
这样的话,假设使用 q 个积分点的Gauss积分,则我们可以使用一个 q\times q\times \dim 1\times \dim 2 的矩阵来储存多项式在区域内部的积分点处的值,使用一个 4\times q\times \dim 1\times \dim 2 的矩阵(第一个分量是方位,按右、左、上、下排序)来储存多项式在区域边界上的积分点处的值,再使用两...
(q) 100000 times took:", timediff ," seconds" end 移植 7-15 运行该程序会产生以下结果: demo% TimeTest Hello, Time Now Is:Thu Feb 8 15:33:36 2001 See how long 'sleep 4' takes, in seconds Elapsed time for sleep 4 was:4 seconds atan(q) 100000 times took:0.01 seconds demo% 下表...
(q) 100000 times took:", timediff ," seconds" end 第 7 章 移植 7-15 运行该程序会产生以下结果: demo% TimeTest Hello, Time Now Is:Thu Feb 8 15:33:36 2001 See how long 'sleep 4' takes, in seconds Elapsed time for sleep 4 was:4 seconds atan(q) 100000 times took:0.01 seconds ...
times where a simple syntax error or misplaced values could ruin an entire code. This feature decreases the time needed for manual searching for errors. TheGNU Fortran compilertranslates computer code written from FORTRAN. It can change FORTRAN codes to other programming languages. This enables any...
a) make sure you are running an up-to-date version of the entire code in the debugger (can you do Rebuild All for your Debug configuration), b) make sure no other breakpoints can interfere with the one of immediate interest, and c) step through the READ loop a few times first i.e...
The parameter nRuns specifies the number of times that this kernel is run and its performance measured. When performed on an idle GPU, a single run may complete before the clocks reach their optimal level. Because these BLAS-like routines are typically used in large code blocks where such ...
Step 3 – Execute the plan as many times as required, providing the pointer to the GPU data created in Step 1. Step 4 – Destroy plan, free GPU memory Example cuFFT Program #include #include #include "cufft.h" #define NX 256 #define NY 128 int main() { cufftHandle plan; cufft...
*** *** DO 999 NT=1,NTIMESNF DO 999 N=NF,NF IF(.NOT. LBLK(NFGO TO 10 PT(ISTF=0. QT(ISTF=0. DO 11 I=IST ,L2 BL=0. BLP=0. BLM=0. BLC=O. DO 12 J=JST,M2 BL=BL+AP(I, IF(J .NE. M2 BL=BL-AJP(I,J IF(J .NE. JST BL=BL-AJM(I,J ...
Curtis Franklin Jr