我正在运行一个模拟来求解对流扩散方程。我希望并行化计算偏导数的代码部分,以加快计算速度。这是我在做什么:
p1 = np.zeros((len(r), len(th)-1 )) #The solution of the matrix
def func(i):
pti = np.zeros(len(th)-1)
for j in range (len(pti)):
abc = f(p1) #Some function calculating the derivatives at each point
pti[j] = p1[i][j] + dt*( abc ) #dt is some small float number
return pti
#Setting the initial condition of the p1 matrix
for i in range(len(p1[:,0])):
for j in range(len(p1[0])):
p1[i][j] = 0.01
#Final loop calculating the integral by finite difference scheme
p = Pool(args.cores)
for k in range (0,args.iterations): #This is integration in time
p1=p.map(func,range(len(r)))
print (p1)
我在这里面临的问题是我的p1矩阵在k的每次迭代之后都没有更新。最后,当我打印p1时,我得到了与初始化相同的矩阵。
此外,此代码的线性版本正在运行(但需要花费很长时间)。
答案 0 :(得分:0)
好的,我自己解决了这个问题。显然是这样
p = Pool(args.cores)
在循环内
for k in range (0,args.iterations):
起到了作用。