Serial QNSTOP for bound-constrained stochastic and global optimization. An FPM wrapper selects unmodified REAL_PRECISION, ZIGARRAY, QNSTOPS and bundled BLAS/LAPACK sources. Explicit CPP suffix handling lets FPM discover .f95 files. Legacy implicit typing/interfaces and argument-mismatch compatibility retain the upstream calling conventions. The seeded two-variable quadratic example checks normal stopping status, bounds, objective value and distance from its known minimizer. It is an accuracy smoke test, not a general global-optimum guarantee. The parallel QNSTOPP driver, noisy objectives, all stopping rules and performance are not validated.
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Build record verified 2026-10-29.
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Serial QNSTOP for bound-constrained stochastic and global optimization. An FPM wrapper selects unmodified REAL_PRECISION, ZIGARRAY, QNSTOPS and bundled BLAS/LAPACK sources. Explicit CPP suffix handling lets FPM discover .f95 files. Legacy implicit typing/interfaces and argument-mismatch compatibility retain the upstream calling conventions. The seeded two-variable quadratic example checks normal stopping status, bounds, objective value and distance from its known minimizer. It is an accuracy smoke test, not a general global-optimum guarantee. The parallel QNSTOPP driver, noisy objectives, all stopping rules and performance are not validated. Dedicated G2 consumer checks four seeded diagonal-quadratic box problems with known interior minimizers in two/three variables. Verifies normal stopping status, feasibility, finite output, evaluation count, returned-objective consistency and unchanged coordinate/objective tolerances. Active-bound probes failed the position tolerance at both 500 and 2000 iterations; source and actual results are retained under docs/gams-candidates/qnstop. Those face probes and an unreached corner fixture are not counted as verified. Seeds use the pinned GNU intrinsic RNG; this is a deterministic accuracy smoke check, not a general global guarantee. Noisy objectives, parallel variants and all stopping/input modes are not verified.