Re: [ojAlgo-user] Code to reproduce strange matrix multiplication

[Anders P. <an...@op...>]

Very strange...

I get the same problem when I run your code. The program hangs on the  
line

tmpBase = tmpBaseFuture.get();

in the

public MatrixStore<N> multiplyRight(MatrixStore<N> aStore) {...}

method of the MergedColumnsStore class.


I have unit tests that test (the performance) of that class that work  
just fine, but with your program it does not work.

I get the feeling the problem is related to how the program is  
launched. Can you test running that program outside of eclipse (that  
you seem to be using) or as as a junit test from within eclipse or  
from an Ant script.


If you replace the last line of your createSx() method to use the  
PrimitiveMatrix copy constructor you get rid of the internal  
MergedColumnsStore.

return new PrimitiveMatrix(sx);

Of course you shouldn't have to do this! ...but it will work around  
the problem.


I leave for a holiday shortly. Not sure I have time to solve this  
problem now.

/Anders


On 11 dec 2007, at 16.44, Tor Erik Askeland wrote:

> Hi,
>
> I added code to reproduce the "hanging". I also tried using  
> multiplyLeft() which you suggested, but it yielded the same result  
> unfortunately...
>
> The code is a bit messy, but I tried adding a comment to explain  
> things.
>
>
> Tor Erik<Test.java>