Exemple #1
0
    regqp.solve(PredictorCorrector=not options.longstep,
                check_infeasible=not options.assume_feasible,
                **opts_solve)

    # Display summary line.
    probname=os.path.basename(probname)
    if probname[-3:] == '.nl': probname = probname[:-3]

    if not options.verbose:
        log.info(fmt % (probname, regqp.iter, regqp.obj_value,
                        regqp.pResid, regqp.dResid, regqp.rgap,
                        t_setup, regqp.solve_time, regqp.short_status))
        if regqp.short_status == 'degn':
            log.info(' F')  # Could not regularize sufficiently.

    qp.close()

log.info('-'*len(hdr))

if not multiple_problems:
    x = regqp.x[:qp.original_n]
    log.info('Final x: %s, |x| = %7.1e' % (repr(x),norm2(x)))
    log.info('Final y: %s, |y| = %7.1e' % (repr(regqp.y),norm2(regqp.y)))
    log.info('Final z: %s, |z| = %7.1e' % (repr(regqp.z),norm2(regqp.z)))

    log.info(regqp.status)
    log.info('#Iterations: %-d' % regqp.iter)
    log.info('RelResidual: %7.1e' % regqp.kktResid)
    log.info('Final cost : %21.15e' % regqp.obj_value)
    log.info('Setup time : %6.2fs' % t_setup)
    log.info('Solve time : %6.2fs' % regqp.solve_time)
Exemple #2
0
                check_infeasible=not options.assume_feasible,
                **opts_solve)

    # Display summary line.
    probname=os.path.basename(probname)
    if probname[-3:] == '.nl': probname = probname[:-3]

    if not options.verbose:
        sys.stdout.write(fmt % (probname, regqp.iter, regqp.obj_value,
                                regqp.pResid, regqp.dResid, regqp.rgap,
                                t_setup, regqp.solve_time, regqp.short_status))
        if regqp.short_status == 'degn':
            sys.stdout.write(' F')  # Could not regularize sufficiently.
        sys.stdout.write('\n')

    qp.close()

if not options.verbose:
    sys.stderr.write('-'*len(hdr) + '\n')
else:
    x = regqp.x[:qp.original_n]
    print 'Final x: ', x, ', |x| = %7.1e' % norm2(x)
    print 'Final y: ', regqp.y, ', |y| = %7.1e' % norm2(regqp.y)
    print 'Final z: ', regqp.z, ', |z| = %7.1e' % norm2(regqp.z)

    sys.stdout.write('\n' + regqp.status + '\n')
    sys.stdout.write(' #Iterations: %-d\n' % regqp.iter)
    sys.stdout.write(' RelResidual: %7.1e\n' % regqp.kktResid)
    sys.stdout.write(' Final cost : %21.15e\n' % regqp.obj_value)
    sys.stdout.write(' Setup time : %6.2fs\n' % t_setup)
    sys.stdout.write(' Solve time : %6.2fs\n' % regqp.solve_time)
Exemple #3
0
numpy.set_printoptions(precision=3, linewidth=80, threshold=10, edgeitems=3)

if not options.verbose:
    sys.stderr.write(hdr + '\n' + '-'*len(hdr) + '\n')

for probname in args:

    t_setup = cputime()
    lp = SlackFramework(probname)
    t_setup = cputime() - t_setup

    islp = True
    if not lp.islp():
        sys.stderr.write('Problem %s is not a linear program\n' % probname)
        islp = False
        lp.close()
        continue

    # Pass problem to RegLP.
    reglp = RegLPInteriorPointSolver(lp,
                                     scale=not options.no_scale,
                                     stabilize=not options.no_stabilize,
                                     verbose=options.verbose,
                                     **opts_init)

    reglp.solve(PredictorCorrector=not options.longstep,
                check_infeasible=not options.assume_feasible,
                **opts_solve)

    # Display summary line.
    probname=os.path.basename(probname)
Exemple #4
0
numpy.set_printoptions(precision=3, linewidth=80, threshold=10, edgeitems=3)

if not options.verbose:
    sys.stderr.write(hdr + '\n' + '-' * len(hdr) + '\n')

for probname in args:

    t_setup = cputime()
    lp = SlackFramework(probname)
    t_setup = cputime() - t_setup

    islp = True
    if not lp.islp():
        sys.stderr.write('Problem %s is not a linear program\n' % probname)
        islp = False
        lp.close()
        continue

    # Pass problem to RegLP.
    reglp = RegLPInteriorPointSolver(lp,
                                     scale=not options.no_scale,
                                     stabilize=not options.no_stabilize,
                                     verbose=options.verbose,
                                     **opts_init)

    reglp.solve(PredictorCorrector=not options.longstep,
                check_infeasible=not options.assume_feasible,
                **opts_solve)

    # Display summary line.
    probname = os.path.basename(probname)