Fix checkpoint bug, when reach checkpoint interval, checkpoint the whole states, containing x(coeffs), grad, adjustedGrad vectors, and last m - 1 numbers of S and Y vectors in Vector-free LBFGS history, and lastX, lastGrad vectors.
Add VBlockMatrix class. Refactor several codes in V-LOR using VBlockMatrix
Fix checkpoint bug, when reach checkpoint interval, checkpoint the whole states, containing
x
(coeffs),grad
,adjustedGrad
vectors, and lastm - 1
numbers ofS
andY
vectors in Vector-free LBFGS history, andlastX
,lastGrad
vectors.Add
VBlockMatrix
class. Refactor several codes in V-LOR usingVBlockMatrix
fix index overflow bug in
VUtils.zipRDDWithIndex
some other code refactor and improvements.