Technical Solutions

Why does MATLAB R14 fail to launch on my AMD64 machine running Windows?

Date Last Modified: Friday, June 26, 2009

Solution ID:		1-RO6ME
Product:		MATLAB
Reported in Release:		R14
Platform:		Windows
Operating System:		Windows Any

Subject:

Why does MATLAB R14 fail to launch on my AMD64 machine running Windows?

Problem Description:

When MATLAB R14 is launched, the splash screen comes up for a second, but MATLAB does not start.

When I try to launch MATLAB from the command prompt, I get the following error:

------------------------------------------------------------------------ Segmentation violation detected at Fri Oct 15 11:12:01 2004 ------------------------------------------------------------------------ Configuration: MATLAB Version: 7.0.0.19920 (R14) Operating System: Microsoft Windows XP Window System: Version 5.1 (Build 2600: Service Pack 2) Processor ID: x86 Family 15 Model 12 Stepping 0, AuthenticAMD Virtual Machine: Java 1.4.2 with Sun Microsystems Inc. Java HotSpot(TM) Client VM (mixed mode) Default Charset: ibm-5348_P100-1997 Register State: EAX = 00000000 EBX = 00000000 ECX = 7c80999b EDX = 02110001 ESI = 01274b60 EDI = 014310d0 EBP = 00cda6d8 ESP = 00cda648 EIP = 00000000 FLG = 00010206 Stack Trace: [0] numerics.dll:??$mfGenMatrixMult@N@@YAXPAUmxArray_tag@@00W4MM_Transpose@@1N@Z(0x01431790, 0x014310d0, 0x01431810, 0) + 532 bytes [1] numerics.dll:void __cdecl mfGenMatrixMult(struct mxArray_tag *,struct mxArray_tag *,struct mxArray_tag *,enum MM_Transpose,enum MM_Transpose)(0x01431790, 0x014310d0, 0x01431810, 0) + 120 bytes [2] numerics.dll:void __cdecl mfTimesTransposeFcn2DFloatPt(int,struct mxArray_tag * * const,int,struct mxArray_tag * * const)(0, 0x00cda88c, 6, 0x00cda7fc) + 913 bytes [3] m_dispatcher.dll:public: virtual void __thiscall Mfh_builtin<struct mxArray_tag>::dispatch_mf(int,struct mxArray_tag * *,int,struct mxArray_tag * *)(1, 0x00cda88c, 3, 0x00cda7fc) + 55 bytes [4] m_dispatcher.dll:public: virtual void __thiscall Mfh_MATLAB_fn::dispatch_fh(int,struct mxArray_tag * *,int,struct mxArray_tag * *)(1, 0x00cda88c, 3, 0x00cda7fc) + 200 bytes

Solution:

The AMD64 processor family is not supported on Windows for any version of MATLAB prior to Release 14 Service Pack 3 (R14SP3). For a list of MATLAB System Requirements, visit:

http://www.mathworks.com/support/sysreq/current_release/

In order to work around this issue, you will need to create a "BLAS_VERSION" environment variable and set it to the following:

$MATLABROOT\bin\win32\atlas_Athlon.dll

where $MATLABROOT is the directory you have installed MATLAB.

If you have set the BLAS_VERSION and still receive an error, add the following two lines to the end of your "blas.spec" file:


AuthenticAMD Family 15 Model 12 atlas_Athlon.dll # Athlon 64 (Newcastle) 
AuthenticAMD Family 15 Model * atlas_Athlon.dll # AMD64

The "blas.spec" file can be found in the directory $MATLABROOT\bin\win32.

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