Issues

• [BUG] rational_cofficients can produce knapsack cuts that remove integer feasible solutions

  awaiting responsebug
  NVIDIA/cuopt#2028 · Filter by author chris-maes opened on Oct 1, 2026
  

• [BUG] Variable bounds of the same wrong length are accepted

  awaiting response
  NVIDIA/cuopt#2025 · Filter by author SashaMIT opened on Sep 30, 2026
  

• [FEA] send all parameters over gRPC as a map<string, string> instead of individual fields

  awaiting responsefeature request
  NVIDIA/cuopt#2011 · Filter by author tmckayus opened on Sep 29, 2026 · 26.10
  1

  

• Native consumers of the libcuopt-mathopt wheel segfault: solver_settings_t is split across mathopt and client

  awaiting response
  NVIDIA/cuopt#2009 · Filter by author ramakrishnap-nv opened on Sep 29, 2026
  4

  

• cuOptCreateProblem fails on num_constraints=0 (zero-row problems)

  awaiting response
  NVIDIA/cuopt#2006 · Filter by author ramakrishnap-nv opened on Sep 29, 2026
  

• Split the cuopt Python package into per-solver packages for VRP and LP

  awaiting response
  NVIDIA/cuopt#2005 · Filter by author ramakrishnap-nv opened on Sep 29, 2026
  

• [Java] Reconsider dedicated setting wrappers (setNumGpus, setMpdlpPartitioner, ...) vs generic setSetting

  awaiting response
  NVIDIA/cuopt#1998 · Filter by author ramakrishnap-nv opened on Sep 28, 2026
  2

• [BUG] cuOpt server crashes (SIGBUS) on any GPU memory touch on NVIDIA DGX Spark (GB10 Superchip, compute capability 12.1)

  bug
  NVIDIA/cuopt#1995 · Filter by author gebellanger opened on Sep 24, 2026 · 26.12
  3

  

• population.cu takes ~2h to compile from a cold sccache miss (7-arch nvcc build)

  awaiting response
  NVIDIA/cuopt#1976 · Filter by author ramakrishnap-nv opened on Sep 22, 2026
  1

  

• cuopt_mcp: warn/error when cuopt_solve_lp is given a model with integer/binary variables

  awaiting responseimprovement
  NVIDIA/cuopt#1942 · Filter by author ramakrishnap-nv opened on Sep 18, 2026
  

• cuopt_mcp: add VRP/routing support

  awaiting responsefeature request
  NVIDIA/cuopt#1939 · Filter by author ramakrishnap-nv opened on Sep 18, 2026
  

• Possible race: RINS worker incumbent size can mismatch leaf_problem.num_cols in branch_and_bound.cpp

  bugmip
  Bug

  NVIDIA/cuopt#1909 · Filter by author ramakrishnap-nv opened on Sep 15, 2026 · 26.10
  5

  

• [BUG] Dual simplex logs an incorrect objective after a bound flip

  bug
  NVIDIA/cuopt#1893 · Filter by author mlubin opened on Sep 13, 2026
  1

  

• [ci] switch to shared 'docs-build' matrix?

  awaiting response
  NVIDIA/cuopt#1887 · Filter by author jameslamb opened on Sep 11, 2026 · 26.12
  

• Remote log callback delivers no lines on the component-split branch (#1622)

  awaiting response
  NVIDIA/cuopt#1878 · Filter by author ramakrishnap-nv opened on Sep 9, 2026
  1

• Package libcuopt_client separately so the gRPC client installs without CUDA

  awaiting response
  NVIDIA/cuopt#1872 · Filter by author ramakrishnap-nv opened on Sep 9, 2026
  1

  

• Add test coverage for warm-start target conversion paths

  awaiting response
  NVIDIA/cuopt#1867 · Filter by author ramakrishnap-nv opened on Sep 8, 2026
  1

  

• [NUMERICAL_ISSUES] Documented 3-variable convex QP returns NumericalError in cuDSS symbolic analysis

  awaiting response
  NVIDIA/cuopt#1861 · Filter by author cafzal opened on Sep 6, 2026
  1

  

• [FEA] PDLP warm start through presolve (today: warm start works only without presolve and loses 3x net) + silent-NaN failure modes

  awaiting response
  NVIDIA/cuopt#1860 · Filter by author scepeda78 opened on Sep 6, 2026
  1

  

• [BUG] Crossover fails with "A numerical error was encountered" on large LP (reproducible 2/2)

  NVIDIA/cuopt#1859 · Filter by author scepeda78 opened on Sep 6, 2026
  1

  

• [FEA] Add an http proxy server that can run as a side car to the gRPC server for legacy API

  awaiting responsefeature request
  NVIDIA/cuopt#1852 · Filter by author tmckayus opened on Sep 3, 2026 · 26.10
  3

  

• cuOpt.jl MOI wrapper: unhandled 'Invalid argument' from GetPrimalSolution/GetDualSolution fails 36 conformance tests every nightly run

  awaiting responsebug
  NVIDIA/cuopt#1832 · Filter by author ramakrishnap-nv opened on Aug 31, 2026
  1

  

• Logger: stale config guard can reset a newer configuration, and resets sinks without the mutex

  awaiting responsebug
  NVIDIA/cuopt#1831 · Filter by author ramakrishnap-nv opened on Aug 31, 2026
  1

  

• Include java-build in the PR test summary

  awaiting response
  NVIDIA/cuopt#1824 · Filter by author ramakrishnap-nv opened on Aug 28, 2026
  1

  

• java-build fails intermittently on Maven Central 429 rate limiting

  awaiting responsebug
  NVIDIA/cuopt#1820 · Filter by author ramakrishnap-nv opened on Aug 28, 2026
  1