NOMAD 4.0.0 Beta 2

NOMAD 4 Beta 2 has numerous improvements since Beta 1 (December 2019).

NOMAD 4 is available as open-source code, under the LGPL license. Makefiles are present for compilation on MacOS and Linux. The code has not been compiled on Windows.

We are looking forward for user feedback.
For more information, reach out to nomad@gerad.ca.

Overview:

New in Beta 2:

• Quadratic Model Search (QUAD_MODEL_SEARCH)
• Groups of variables (VARIABLE_GROUP)
• Direction types (DIRECTION_TYPE)
• Sort evaluation queue before evaluating points; randomize point evaluation
• PSD-Mads
• Additional statistics, HISTORY_FILE, SOLUTION_FILE
• Compilation using CMake
• Parameter USE_CACHE

Features already available in NOMAD 4, Beta 1:

• Parameter syntax for parameter file is the same as in NOMAD 3
• Search implementations: Nelder Mead, Speculative, Latin Hypercube, SgtelibModel
• Usage of library Sgtelib
• Management of PB (progressive barrier) and EB (extreme barrier) constraints
• Python interface
• Callbacks
• Block evaluations
• Evaluations are done in parallel, using OpenMP
• Hot restart: See parameter HOT_RESTART_ON_USER_INTERRUPT