我试图在中央服务器中运行模拟(用python编写),模拟完成后,通过连接到我的本地PC,将保存的图形文件/保存的数据文件移动到我的本地PC。代码如下:
import matplotlib.pyplot as plt
import subprocess
import scipy.io
import os
#Save data file:
scipy.io.savemat(data_path + Filename_str, dict(A=board))
#Create / Save figure by using imshow (Heatmap)
p = plt.imshow(mean_map.T, cmap = plt.cm.gist_yarg_r, origin = 'lower', extent = [0, phi, 0, Z], aspect='auto')
plt.savefig(figure_path + Filename_str + '-Homophily.pdf')
# Connect to my local host (arabian-knights) using ssh, and follow command.
ret = subprocess.call(['ssh', 'arabian-knights', 'mv Data/* /scratch/Data/'])
ret = subprocess.call(['ssh', 'arabian-knights', 'mv Figure/* /scratch/Figure/'])
从我的本地计算机(阿拉伯骑士)连接到服务器计算机后,我在服务器计算机的后台运行此模拟。即使我关闭了与服务器计算机的连接,因为模拟在后台运行,它不会停止,并且在模拟完成后数据文件会正确移动到我的本地计算机。但是,图形文件(由matplotlib.pyplot.imshow生成)未保存,显示以下错误消息:
Traceback (most recent call last):
File "./ThrHomoHeatmap-thrstep.py", line 179, in <module>
p = plt.imshow(board.T, cmap = plt.cm.gist_yarg_r, vmin=0, vmax=n, origin = 'lower', extent = [0, phi, 0, Z], aspect='auto')
File "/usr/lib/pymodules/python2.7/matplotlib/pyplot.py", line 2370, in imshow
ax = gca()
File "/usr/lib/pymodules/python2.7/matplotlib/pyplot.py", line 701, in gca
ax = gcf().gca(**kwargs)
File "/usr/lib/pymodules/python2.7/matplotlib/pyplot.py", line 369, in gcf
return figure()
File "/usr/lib/pymodules/python2.7/matplotlib/pyplot.py", line 343, in figure
**kwargs)
File "/usr/lib/pymodules/python2.7/matplotlib/backends/backend_tkagg.py", line 80, in new_figure_manager
window = Tk.Tk()
File "/usr/lib/python2.7/lib-tk/Tkinter.py", line 1688, in __init__
self.tk = _tkinter.create(screenName, baseName, className, interactive, wantobjects, useTk, sync, use)
_tkinter.TclError: couldn't connect to display "localhost:18.0"
有没有人可以解决这个问题,将 matplotlib.pyplot 图形文件也从服务器移动到本地计算机?