constraints open-source nonlinear-optimization pyomo mixed-integer-programming

Are there any reliable open source non-linear mixed integer optimization solvers?

I've been struggling to find some open source non-linear integer optimization solvers! I am trying to solve a 16 variable problem where 8 values are integers, subjected to two nonlinear objective functions and 5 nonlinear constraint functions. Is this possible in the open-source domain? I got PyOmo and created my whole model before I realized that the GLPK solver doesn't support non-linearity... facepalm

(Trying to solve for gear sizes in a gearbox given target geartrain ratios - I'm an engineering student)

Solution

Here is a semi-recent survey of MINLP solver software. Any solver discussed in that paper that has an AMPL interface can be used with Pyomo (e.g., BONMIN, Couenne). See the table at the end of the linked paper for a complete list.

When did C allow casting constants and variables to struct for assignment?
Why in C can I initialize more values than the size of an array?
What Values of Variables x and y Will Produce Incorrect Results When Testing for Overflow After Subtraction of x-y in the Following Program?
How to write a general-type queue library in c?
Which gcc and g++ version support which standard of c and c++?
How to dereference a member in a struct whose definition is not visible?
How to name a type in a meaningful way?
In this case, how to achieve modularity and information hiding at the same time?
What are Vectors and < > in C?
Using c to create a file and write+read to it, what went wrong?
Why does 1.0/100.0 == 0.1/10.0 give True?
How to organize the receive msg and user current input in C network such that it's clean
Using inclusive scan syntax in OpenMP in the C language
Unable to understand context in book "OOP in C" by Axel Schreiner
variable-length array in struct with TI compiler in C (socket programming)
A faster way to test 32bpp DDBs for a valid Alpha channel
How can I compile the zephyr example-application as a freestanding application?
Why does my forked process sometimes overwrite data in a file?
_Generic in C needs typecasting?
Declaring/defining an unused variable changes the output from an unrelated variable
How to use gdb to explore the stack/heap?
How can I read an input string of unknown length?
Confused by difference between expression inside if and expression outside if
Fast Arc Cos algorithm?
Discrepancy of `unsigned long` size between llvm and gcc in riscv32
GCC (C) - error: 'x' redeclared as different kind of symbol
Why does GCC’s static analyser falsely warn that a pointer to an allocated memory block itself stored in an allocated memory block may leak?
c language gcc compiler *.i file #3 "" 2 what is this?
How to make clang compile to llvm IR
Hashtable implementation in C