you can also tell Elemental not to worry if the singular values don't all converge
Aidan Dang
@AidanGG
those are my distmatrix.bin and test script
I've tried setting qrctrl.demandconverged to false, but I don't think that worked either
Jack Poulson
@poulson
it still complained about not converging?
I haven't tested that option explicitly but tried to set it up
I'm downloading it now
I have about ten minutes to make/drink coffee, figure this out, and run to work but can hopefully find something
Aidan Dang
@AidanGG
Please don't stress too much about it, you've been a great help.
If I set demandconverged to false, it appears to hang
Jack Poulson
@poulson
something seems to be wrong with that file:
poulson@poulson-ASUS:~/Source/Internal/Elemental/build-gcc$ ./bin/sandbox-test
terminate called after throwing an instance of 'std::runtime_error'
what():Expected file to be 8 bytes but found 63406096Aborted (core dumped)
how did you create it?
Aidan Dang
@AidanGG
El::Write
I'm on 64 bit ints
Jack Poulson
@poulson
ah, I wonder if that's it
also, have you checked that if you download that .bin file from your Google Drive that you can run your test program with it?
Aidan Dang
@AidanGG
I'll check it out.
Jack Poulson
@poulson
the metadata at the beginning of the file is an El::Int, and that size is variable
I think that is the problem with me trying to run with the 32-bit version
Aidan Dang
@AidanGG
I can get you a version with 32bit ints
after I get some sleep, because it's 3:30am here in Melbourne. Thanks so much for your support.
Jack Poulson
@poulson
no worries, I can build a 64-bit version and debug
get some sleep and I will fix it by tonight
Aidan Dang
@AidanGG
Hello again Jack, my issues with this matrix occur on the default 4 process grid (2x2 after my recent pull) if that is any help.
Jack Poulson
@poulson
does the problem occur on a single process?
Aidan Dang
@AidanGG
mpirun -np 1 appears to work fine, both with useQR true or false.
Aidan Dang
@AidanGG
I've checked with a modified version of the SVD test driver, and the results are good when I run on one process