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# OPTIMIZATION QUESTIONS

Optim.jl univariate bounded optimization confusing output when using Inf as bound
I wish this help you As you note in your question - you use bounded optimization algorithm but you pass an unbounded interval to it.Citing the documentation (https://julianlsolvers.github.io/Optim.jl/latest/user/minimization/), which is precise about
TAG : optimization
Date : January 11 2021, 03:34 PM , By : user3099612
SIMD instructions lowering CPU frequency
With these it helps The frequency impact depends on the width of the instruction and the instruction used. There are three frequency levels, so-called licenses, from fastest to slowest: L0, L1 and L2. L0 is the "nominal" speed you'll see written on t
TAG : optimization
Date : January 02 2021, 06:48 AM , By : Nikki Neha
Complexity of Integer vs. Binary Constraints in CPLEX
With these it helps I agree with Alex and Erwin's comment that this really depends on what you want to model. For this particular model I disagree with Alex: to me it makes more sense to use one decision variable per person, otherwise it may become h
TAG : optimization
Date : January 02 2021, 06:48 AM , By : Marcus Chamberlain
how I can seperate negative and positive variables?
should help you out Suppose that BT[i,j,k,r] is your binary variable. Then if you are using CPLEX, Gurobi, or Xpress as your solver, you can write an "indicator constraint" like this:
TAG : optimization
Date : January 02 2021, 06:48 AM , By : quaterneon
Optimal Sharing of heavy computation job using Snow and/or multicore
will help you Snow and multicore varies in one significant way -- multicore forks a new process, so it is using the same memory as the main process. This means that if you use snow you need to distribute (physically send and store in children' space)
TAG : optimization
Date : January 02 2021, 06:48 AM , By : berdim99
Pyomo: How to write a constraint for each (i,j) pair
hop of those help? Edit: I have also added a constraint 1.5 to illustrate maybe a different way of approaching the constraint. , I would try something like this:
TAG : optimization
Date : January 01 2021, 06:46 AM , By : user3091389
How to disable all optimization when using COSMIC compiler?
seems to work fine It is not clear from the manual, but it seems that the -no option prevents assembly level optimisation. It seems possible that the code generator stage that runs before assembly optimisation may perform higher level optimisation su
TAG : optimization
Date : December 28 2020, 06:11 AM , By : user3087457
How to maximize a var int that is larger than 32 bits?
hope this fix your issue It's not really MiniZinc that is the limit here, it's the solver. As the documentation state (from the link about integers you cited, my emphasis):
TAG : optimization
Date : December 24 2020, 10:30 AM , By : user3066758
blocking call on two Queues?
I hope this helps . You should be able to use VxWorks events coupled with a Message Queue. See msgQEvStart function and Kernel Programmer's Guide, section 7.9.This is akin to using a select() for I/O operation. You do a blocking eventReceive which re
TAG : optimization
Date : November 18 2020, 03:42 PM , By : Raju Jella
How to improve the optimization speed of z3?
I hope this helps . As posed, this question is unanswerable. You said nothing about the nature of your constraints (are they linear, simple equalities, 1-0's only?), nor anything about the application domain itself. Keep in mind that z3's optimizer i
TAG : optimization
Date : October 05 2020, 02:00 AM , By : Ali Waris
In Lisp, is it more idiomatic to use let* or setf?
hope this fix your issue As mentioned in a comment, I would not worry about performance, at all, until you know it's a problem. It's not safe to assume you know what compilers will do with your code, or indeed what the machine will do with the code t
TAG : optimization
Date : September 30 2020, 06:00 AM , By : Robert C Gray Jr.
How to efficiently iterate over a list of objects in julia?
wish help you to fix your issue I understand that you want to speed up the inner loop part (without changing the general logic). If this is the case then change typeof(chosen) == typeA to typeof(chosen) === typeA or chosen isa typeA (the same for typ
TAG : optimization
Date : September 29 2020, 05:00 AM , By : Big D
Long latency instruction
I think the issue was by ths following , Mainstream Intel CPUs don't have any very long latency single-uop integer instructions. There are integer ALUs for 1-cycle latency uops on all ALU ports, and a 3-cycle-latency pipelined ALU on port 1. I think
TAG : optimization
Date : September 28 2020, 05:00 PM , By : user6074358
accessing dummy variable in fortran prevents optimization?
may help you . The value 2 is a very special value. If the compiler knows that it always divides by 2, it can just shift the bits instead of doing an arithmetic computation. However, in progb the compiler must count with any possible integer value so
TAG : optimization
Date : September 27 2020, 01:00 PM , By : qmm0523
How to tell LLVM that it can optimize away stores?
To fix this issue I edited in the following bullet after originally posting the question: Given that only the last is elided, is the problem that it assumes they may alias?
TAG : optimization
Date : September 27 2020, 03:00 AM , By : Surya Rajesh
CpoException: Can not execute command 'cpoptimizer -angel'. Please check availability of required executable file
fixed the issue. Will look into that further Please try the following as suggested here:
TAG : optimization
Date : September 25 2020, 07:00 PM , By : Zainab
How does CP Optimizer compare to other constraint programming solvers/
fixed the issue. Will look into that further There are actually multiple questions. As CP Optimizer developer I try to answer some that are directly related to CP Optimizer.Before CP Optimizer there was ILOG Solver and ILOG Scheduler. Scheduling prob
TAG : optimization
Date : September 22 2020, 03:00 PM , By : Arpit Agarwal
using GEKKO to optimize with a large number of variables, bounds and constraints
I wish did fix the issue. Gekko has functions to load dense or sparse matrices for linear programming problems of the form:
TAG : optimization
Date : September 21 2020, 07:00 PM , By : peter
Optimising or restructuring n-n relationship Neo4j queries causing very slow response times
This might help you Hej Arnab!I am a bit confused about what you are trying to achieve with the 2 shortestPath call you have in your MATCH. You might want to use the shortestPath function to return the shortest path between 2 nodes you have previousl
TAG : optimization
Date : September 13 2020, 10:00 AM , By : user6096989