GAMS — The Solver Manuals - Available Software

PATH 4.6 483
Option Default Explanation
convergence tolerance 1e-6 Stopping criterion
crash iteration limit 50 Maximum iterations allowed in crash
crash merit function fischer Merit function used in crash method
crash method pnewton pnewton or none
crash minimum dimension 1 Minimum problem dimension to perform
crash
crash nbchange limit 1 Number of changes to the basis allowed
crash perturb yes Perturb the problem using pnewton crash
crash searchtype line Searchtype to use in the crash method
cumulative iteration limit 10000 Maximum minor iterations allowed
gradient searchtype arc Searchtype to use when a gradient step is
taken
gradient step limit 5 Maximum number of gradient step allowed
before restarting
interrupt limit 5 Ctrl-C’s required before killing job
lemke rank deficiency iterations 10 Number of attempts made to fix rankdeficient
basis during lemke start
lemke start automatic Frequency of lemke starts (automatic, first,
always)
major iteration limit 500 Maximum major iterations allowed
merit function fischer Merit function to use (normal or fischer)
minor iteration limit 1000 Maximum minor iterations allowed in each
major iteration
nms yes Allow line searching, watchdoging, and
nonmonotone descent
nms initial reference factor 20 Controls size of initial reference value
nms maximum watchdogs 5 Maximum number of watchdog steps allowed
nms memory size 10 Number of reference values kept
nms mstep frequency 10 Frequency at which m steps are performed
Table 28.5: PATH Options