mldivide license issue

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mldivide license issue

Postby LieutenantLefse » Fri Oct 28, 2011 12:45 pm

According to I should not need any add-on license to use mldivide for single-precision, real-valued inputs. However, I'm getting this license error:

>> gactivate
Welcome to Jacket: The GPU Engine for MATLAB!

Verifying Installation ....

Is Jacket gpu_entry.mex file found? .... OK
Is the driver version correct? .... OK
Is jlicense.dat license file found? .... OK

Testing Jacket license and runtime ....

Jacket v1.8 (build 6b0319d) by AccelerEyes
License Type: Designated Computer (on 64-bit Linux)
Licensed Addons: none
Multi-GPU: Not Available

Detected CUDA-capable GPUs:
CUDA driver 280.13, CUDA toolkit 4.0
GPU0 Tesla C2050, 2688 MB, Compute 2.0 (single,double) (in use)
GPU1 Quadro FX 3800, 1024 MB, Compute 1.3 (single,double)
Display Device: GPU1 Quadro FX 3800

GPU Memory Usage: 2623 MB free (2688 MB total)


Note, if you need to upgrade from a trial license to a
purchased license, select the Host ID below of your most
stable network interface. Then paste the Host ID into the
Manage Licenses page (
and download the license. Finally, place the file here:

Host ID 1 = 002564B7157E

To get more information about your network interfaces, you
can run the following in MATLAB:
For Windows, >> !ipconfig /all
For Linux or Mac, >> !ifconfig

>> A=grand(4,4);
>> b=grand(4,1);
>> A\b
??? Error using ==> mldivide
license required (src/matlab/calls/mldivide.cpp:111)

This is with Jacket 1.8.0. I've tried updating to the latest version, but it crashes - I posted separately about that.
Posts: 2
Joined: Fri Oct 28, 2011 11:40 am

Re: mldivide license issue

Postby jaideep » Fri Oct 28, 2011 3:51 pm

Hi LieutenantLefse,

This has been fixed and you can download the latest nightly from


Jaideep Singh
Software Engineer
User avatar
Posts: 207
Joined: Tue Oct 11, 2011 2:40 pm

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