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Commit 7d9ae5ded8a51f3a372f817dba13baad462767f2

Authored by ruppert
1 parent cc5b7023
Exists in master and in 67 other branches 3d_inter_style, MIPs, beta3, beta4, brush_pix, canvas_reeng, canvas_text, casmoothing_cython, clean, command-line, cython_threshold, debian_cython, editor_improvements, encoding, ff_mask, ff_mask_improv, ffill_gui, ffill_segmentation, fill_holes_auto, fixes_pre_beta5, floodfill, get_pixel, import_mesh, interactor_style, inv3.0.1, mactoolbar, mactoolbar_bkp, manual_v3.1, mask_boolean_op, mask_boolean_op_bkp, mask_copy, mask_greatest_component, measure, measure_canvas, measure_improvements, measure_placement_test, measure_spacing, orientation, phoenix, region_growing_confidence, remote, remove_local_wxpython, rmatsuda-fix_ref_MTC, rmatsuda-fix_remove_marker_bug, rmatsuda-trigger_bug_fix, rotvol, segmentation_menu, select_part, smoothing_bin, smoothing_bin_pll, surface_area, threshold_history, user_guide_en, usp-navegador, vti, vtk6, watershed, watershed_improvements, watershed_improvements_bkp, watershed_merge, workdir, wwwlgui, wx2.9_mac, wxgtk3, wxgtk3_b5, wxgtk3_bkp, xmartlabs-command-line

ADD: function calculate_resizing_tofitmemory

Showing 1 changed file with 45 additions and 0 deletions   Show diff stats
invesalius/utils.py
  Diff comments   View file @7d9ae5d
@@ -22,6 +22,7 @@ import sigar @@ -22,6 +22,7 @@ import sigar
22 import sys 22 import sys
23 import re 23 import re
24 import locale 24 import locale
  25 +import math
25 26
26 def format_time(value): 27 def format_time(value):
27 sp1 = value.split(".") 28 sp1 = value.split(".")
@@ -203,6 +204,49 @@ def frange(start, end=None, inc=None): @@ -203,6 +204,49 @@ def frange(start, end=None, inc=None):
203 return L 204 return L
204 205
205 206
  207 +
  208 +def calculate_resizing_tofitmemory(x_size,y_size,n_slices,byte):
  209 + """
  210 + Predicts the percentage (between 0 and 1) to resize the image to fit the memory,
  211 + giving the following information:
  212 + x_size, y_size: image size
  213 + n_slices: number of slices
  214 + byte: bytes allocated for each pixel sample
  215 + """
  216 + imagesize = x_size * y_size * n_slices * byte
  217 +
  218 + sg = sigar.open()
  219 + ram_free = sg.mem().actual_free()
  220 + ram_total = sg.mem().actual_free()
  221 + swap_free = sg.swap().free()
  222 + sg.close()
  223 +
  224 + if (sys.platform == 'win32'):
  225 + if (platform.architecture()[0] == '32bit'):
  226 + if ram_free>1400000000:
  227 + ram_free=1400000000
  228 + if ram_total>1400000000:
  229 + ram_total=1400000000
  230 +
  231 + if (sys.platform == 'linux2'):
  232 + if (platform.architecture()[0] == '32bit'):
  233 + if ram_free>3500000000:
  234 + ram_free=3500000000
  235 + if ram_total>3500000000:
  236 + ram_total=3500000000
  237 +
  238 + if (swap_free>ram_total):
  239 + swap_free=ram_total
  240 + resize = (float((ram_free+0.5*swap_free)/imagesize))
  241 + resize=math.sqrt(resize) # this gives the "resize" for each axis x and y
  242 + if (resize>1):
  243 + resize=1
  244 + return (100*resize)
  245 +
  246 +
  247 +
  248 +
  249 +
206 def predict_memory(nfiles, x, y, p): 250 def predict_memory(nfiles, x, y, p):
207 """ 251 """
208 Predict how much memory will be used, giving the following 252 Predict how much memory will be used, giving the following
@@ -294,6 +338,7 @@ def get_physical_memory(): @@ -294,6 +338,7 @@ def get_physical_memory():
294 return int(mem.total()) 338 return int(mem.total())
295 339
296 340
  341 +
297 def get_system_encoding(): 342 def get_system_encoding():
298 if (sys.platform == 'win32'): 343 if (sys.platform == 'win32'):
299 return locale.getdefaultlocale()[1] 344 return locale.getdefaultlocale()[1]