{"action":"created","issue":{"url":"https://api.github.com/repos/cvxgrp/scs/issues/99","repository_url":"https://api.github.com/repos/cvxgrp/scs","labels_url":"https://api.github.com/repos/cvxgrp/scs/issues/99/labels{/name}","comments_url":"https://api.github.com/repos/cvxgrp/scs/issues/99/comments","events_url":"https://api.github.com/repos/cvxgrp/scs/issues/99/events","html_url":"https://github.com/cvxgrp/scs/issues/99","id":311496465,"number":99,"title":"SCS out not Converging","user":{"login":"prateeky2806","id":15224633,"avatar_url":"https://avatars0.githubusercontent.com/u/15224633?v=4","gravatar_id":"","url":"https://api.github.com/users/prateeky2806","html_url":"https://github.com/prateeky2806","followers_url":"https://api.github.com/users/prateeky2806/followers","following_url":"https://api.github.com/users/prateeky2806/following{/other_user}","gists_url":"https://api.github.com/users/prateeky2806/gists{/gist_id}","starred_url":"https://api.github.com/users/prateeky2806/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/prateeky2806/subscriptions","organizations_url":"https://api.github.com/users/prateeky2806/orgs","repos_url":"https://api.github.com/users/prateeky2806/repos","events_url":"https://api.github.com/users/prateeky2806/events{/privacy}","received_events_url":"https://api.github.com/users/prateeky2806/received_events","type":"User","site_admin":false},"labels":[],"state":"closed","locked":false,"assignee":null,"assignees":[],"milestone":null,"comments":8,"created_at":"2018-04-05T07:12:58Z","updated_at":"2018-04-18T14:38:48Z","closed_at":"2018-04-18T14:38:48Z","author_association":"NONE","body":"I am trying to solve an SDP on GPU. The size of the matrix involved is ~1000 but even after running the solver with 50000 iterations the solution it is returning has status Solved/Inaccurate. The tolerance level I need is around 1e-07.  Before this particular graph, I have used the same code for much larger matrices and it converges within 1000 iterations.\r\n\r\n        ----------------------------------------------------------------------------\r\n\tSCS v2.0.2 - Splitting Conic Solver\r\n\t(c) Brendan O'Donoghue, Stanford University, 2012-2017\r\n        ----------------------------------------------------------------------------\r\n       Lin-sys: sparse-indirect GPU, nnz in A = 1519212, CG tol ~ 1/iter^(2.00)\r\n       eps = 1.00e-07, alpha = 1.50, max_iters = 50000, normalize = 1, scale = 1.00\r\n       acceleration_lookback = 20, rho_x = 1.00e-03\r\n       Variables n = 508537, constraints m = 1518204\r\n       Cones:\tprimal zero / dual free vars: 1009668\r\n       sd vars: 508536, sd blks: 1\r\n       Setup time: 1.37e+00s\r\n       ----------------------------------------------------------------------------\r\n        Iter | pri res | dua res | rel gap | pri obj | dua obj | kap/tau | time (s)\r\n       ----------------------------------------------------------------------------\r\n       0| 1.48e+22  7.53e+21  1.00e+00 -5.09e+23  4.05e+23  4.87e+20  1.67e+00 \r\n       100| 4.23e-02  1.09e-03  4.26e-04  4.07e+02  4.07e+02  7.60e-15  5.38e+01 \r\n       200| 3.58e-02  9.64e-04  3.08e-04  4.15e+02  4.15e+02  3.87e-16  1.03e+02 \r\n       300| 3.07e-02  9.14e-04  3.58e-05  4.16e+02  4.16e+02  2.10e-14  1.54e+02\r\n       23800| 5.42e-03  1.67e-04  4.60e-05  4.13e+02  4.13e+02  1.98e-13  1.09e+04 \r\n       23900| 1.18e-04  3.20e-06  2.11e-06  4.13e+02  4.13e+02  8.97e-15  1.10e+04 \r\n       24000| 6.74e-05  1.71e-06  3.20e-07  4.13e+02  4.13e+02  1.89e-14  1.10e+04 \r\n       24100| 1.21e-04  2.90e-06  3.06e-06  4.13e+02  4.13e+02  1.68e-15  1.11e+04 \r\n       24200| 1.06e-04  2.89e-06  7.31e-07  4.13e+02  4.13e+02  8.38e-15  1.11e+04 \r\n       49400| 9.43e-05  2.71e-06  1.46e-06  4.13e+02  4.13e+02  1.53e-14  2.23e+04 \r\n       49500| 1.28e-04  3.45e-06  7.60e-07  4.13e+02  4.13e+02  9.91e-16  2.23e+04 \r\n       49600| 3.60e-03  9.34e-05  1.07e-05  4.13e+02  4.13e+02  1.31e-13  2.23e+04 \r\n       49700| 6.06e-05  1.60e-06  3.10e-07  4.13e+02  4.13e+02  6.74e-16  2.24e+04 \r\n       49800| 1.45e-04  4.07e-06  6.35e-07  4.13e+02  4.13e+02  1.47e-14  2.24e+04 \r\n       49900| 9.53e-05  2.99e-06  1.33e-07  4.13e+02  4.13e+02  5.72e-15  2.25e+04 \r\n       50000| 2.24e-04  6.33e-06  5.12e-07  4.13e+02  4.13e+02  2.11e-14  2.25e+04 \r\n       ----------------------------------------------------------------------------\r\n       Status: Solved/Inaccurate\r\n       Hit max_iters, solution may be inaccurate\r\n       Timing: Solve time: 2.25e+04s\r\n       Lin-sys: avg # CG iterations: 3.00, avg solve time: 1.28e-01s\r\n       Cones: avg projection time: 6.56e-02s\r\n       Acceleration: avg step time: 2.07e-01s\r\n       ----------------------------------------------------------------------------\r\n       Error metrics:\r\n       dist(s, K) = 5.3764e-02, dist(y, K*) = 1.2347e-06, s'y/|s||y| = -2.2028e-10\r\n       primal res: |Ax + s - b|_2 / (1 + |b|_2) = 2.2388e-04\r\n       dual res:   |A'y + c|_2 / (1 + |c|_2) = 6.3261e-06\r\n       rel gap:    |c'x + b'y| / (1 + |c'x| + |b'y|) = 5.1194e-07\r\n       ----------------------------------------------------------------------------\r\n       c'x = 413.1845, -b'y = 413.1849\r\n       ============================================================================\r\n        Time to Solve Optimisation: 22537.750083208084 seconds\r\n\r\nI am not sure, what exactly is the issue here. Any help will be appreciated.\r\n"},"comment":{"url":"https://api.github.com/repos/cvxgrp/scs/issues/comments/382410218","html_url":"https://github.com/cvxgrp/scs/issues/99#issuecomment-382410218","issue_url":"https://api.github.com/repos/cvxgrp/scs/issues/99","id":382410218,"user":{"login":"bodono","id":555071,"avatar_url":"https://avatars0.githubusercontent.com/u/555071?v=4","gravatar_id":"","url":"https://api.github.com/users/bodono","html_url":"https://github.com/bodono","followers_url":"https://api.github.com/users/bodono/followers","following_url":"https://api.github.com/users/bodono/following{/other_user}","gists_url":"https://api.github.com/users/bodono/gists{/gist_id}","starred_url":"https://api.github.com/users/bodono/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/bodono/subscriptions","organizations_url":"https://api.github.com/users/bodono/orgs","repos_url":"https://api.github.com/users/bodono/repos","events_url":"https://api.github.com/users/bodono/events{/privacy}","received_events_url":"https://api.github.com/users/bodono/received_events","type":"User","site_admin":false},"created_at":"2018-04-18T14:38:48Z","updated_at":"2018-04-18T14:38:48Z","author_association":"OWNER","body":"No problem."}}
{"actor":{"display_login":"bodono"}}