Julian Hall comments

Results 551 comments of


                                            Julian Hall

Unbounded problem not correctly identified

Closed by #1980

OR-Tools issues

Thanks @Mizux! By "we engage" I was suggesting that HiGHS might contribute to fixing them, so do ask if you need us to do anything

Unnecessary copies at each iteration in HiPO

Please would you look at this @filikat

Unnecessary copies at each iteration in HiPO

We have plenty of tests that are performed on PRs, thanks

Consider "light" use of sparse user-supplied MIP solution

> FYI: [@jajhall](https://github.com/jajhall), I'm not sure if you remember, but `HighsCallbackInput::repairSolution()` will somewhat do this already. When the user provides a partial solution in a callback, this will call the...

Callbacks as CSharp Events

> @darrylmelander Are you still working on this? Otherwise I would be interested in expanding further and testing to get it merged I think so. @darrylmelander emailed us yesterday saying...

Callbacks as CSharp Events

Unfortunately no-one in the HiGHS team is a C# developer, so we've relied on external contributors to do the groundwork, with us just adding easy things by pattern-matching. For libraries...

Callbacks as CSharp Events

Unfortunately no-one in the HiGHS team is a C# developer, so we've relied on external contributors to do the groundwork, with us just adding easy things by pattern-matching. For libraries...

Slow allocations - Container alias to use a different allocator

Thanks for the interesting observation. Changing every occurrence of `std::vector` to `HighsVector` is feasible, but I'd be opposed to it if it meant losing access to vector values in VScode,...

Slow allocations - Container alias to use a different allocator

> I think we should still be able to debug in VS Code with an alias. I'll check this using a simple code. If we can't inspect vector values in...