Matlab's 'run and time' crashes with mex file

问题

I am using glmnet library within my codebase in Matlab without problems during normal operation. However the moment I use Matlab's 'run and time' feature to analyse performance of my codebase, Matlab throws an access violation. The Mex file is the one that is shipped with the package.

Is there a fundamental incompatibility of mex files and 'run and time', or do Mex files have to be strictly written to conform to 'run and time' runtime standards (perhaps to do with memory allocation/deallocation)?

I don't want to start digging around in the third party code - all I want is for the profiler to tell me how long was spent executing the mex file in the context of my codebase - I am not interested in what is going on in the mex file. Is there a way to configure the profiler to deal with the mex file in this way?

The stack trace is as follows:

------------------------------------------------------------------------
           Access violation detected at Wed Jul 26 10:10:39 2017
------------------------------------------------------------------------

Configuration:
  Crash Decoding      : Disabled - No sandbox or build area path
  Crash Mode          : continue (default)
  Current Graphics Driver: Unknown hardware 
  Default Encoding    : windows-1252
  Deployed            : false
  Graphics card 1     : Intel Corporation ( 0x8086 ) Intel(R) Iris(TM) Plus Graphics 640 Version 21.20.16.4664
  Host Name           : DESKTOP-MARUMC2
  MATLAB Architecture : win64
  MATLAB Entitlement ID: 1208320
  MATLAB Root         : C:\Program Files\MATLAB\R2016b
  MATLAB Version      : 9.1.0.441655 (R2016b)
  OpenGL              : hardware
  Operating System    : Microsoft Windows 10 Home
  Processor ID        : x86 Family 6 Model 142 Stepping 9, GenuineIntel
  Virtual Machine     : Java 1.7.0_60-b19 with Oracle Corporation Java HotSpot(TM) 64-Bit Server VM mixed mode
  Window System       : Version 10.0 (Build 14393)

Fault Count: 1


Abnormal termination:
Access violation

Register State (from fault):
  RAX = 0000000000000000  RBX = 0000000000000000
  RCX = 00000000fc615760  RDX = 00000000043f8d10
  RSP = 00000000043f7128  RBP = 00000000043f8d10
  RSI = 00000000aaf4ba00  RDI = 0000000000000000

   R8 = 00000000043f7f30   R9 = 00000000fc615760
  R10 = 0000000000000000  R11 = 00000000043f8d10
  R12 = 0000000000000001  R13 = 0000000000000000
  R14 = 00000000043f8d10  R15 = 00000000fc615760

  RIP = 000000018008346f  EFL = 00010206

   CS = 0033   FS = 0053   GS = 002b

Stack Trace (from fault):
[  0] 0x000000018008346f C:\Program Files\MATLAB\R2016b\bin\win64\libmx.dll+00537711 MXGETPR+00000003
[  1] 0x00007ffb629619dc C:\Users\work\glmnet_matlab\glmnetMex.mexw64+00006620 MEXFUNCTION+00002524

来源：https://stackoverflow.com/questions/45323117/matlabs-run-and-time-crashes-with-mex-file

标签

matlab

mex