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[Ken Arnold <kenneth.arnold@xxxxxxxxx>]

Public bug reported:

cnet3_tensor.svd()
Unfolding along dimension 0
SOLVING THE [A^TA] EIGENPROBLEM
NO. OF ROWS               =   9702
NO. OF COLUMNS            =  62551
NO. OF NON-ZERO VALUES    = 232318
MATRIX DENSITY            =   0.04%
MAX. NO. OF LANCZOS STEPS =   9702
MAX. NO. OF EIGENPAIRS    =     50
LEFT  END OF THE INTERVAL = -1.00E-30
RIGHT END OF THE INTERVAL =  1.00E-30
KAPPA                     =  1.00E-06

TRANSPOSING THE MATRIX FOR SPEED
Segmentation fault (core dumped)

Problem is almost definitely in the matrix-packing code.

** Affects: divisi
     Importance: Undecided
         Status: New


** Tags: 3d cython unfolding

-- 
unfolded SVD segfaults
https://bugs.launchpad.net/bugs/381958
You received this bug notification because you are a member of
Commonsense Computing, which is the registrant for Divisi.

Status in Divisi: New

Bug description:
cnet3_tensor.svd()
Unfolding along dimension 0
SOLVING THE [A^TA] EIGENPROBLEM
NO. OF ROWS               =   9702
NO. OF COLUMNS            =  62551
NO. OF NON-ZERO VALUES    = 232318
MATRIX DENSITY            =   0.04%
MAX. NO. OF LANCZOS STEPS =   9702
MAX. NO. OF EIGENPAIRS    =     50
LEFT  END OF THE INTERVAL = -1.00E-30
RIGHT END OF THE INTERVAL =  1.00E-30
KAPPA                     =  1.00E-06

TRANSPOSING THE MATRIX FOR SPEED
Segmentation fault (core dumped)

Problem is almost definitely in the matrix-packing code.