# Optimization program which previously worked is no longer working
**URL:** https://discourse.julialang.org/t/optimization-program-which-previously-worked-is-no-longer-working/118900
**Category:** General Usage
**Tags:** question, diffeq, optimization, differentialequation
**Created:** [September 1, 2024, 6:19am UTC](https://discourse.julialang.org/t/optimization-program-which-previously-worked-is-no-longer-working/118900 "2024-09-01T06:19:31Z")
**Posts on this page:** 13
**Page:** 1
### Author:  [@tighem](https://discourse.julialang.org/u/tighem)
#### Post date: [September 1, 2024, 6:19am UTC](https://discourse.julialang.org/t/optimization-program-which-previously-worked-is-no-longer-working/118900/1 "2024-09-01T06:19:32Z")
I am running julia version 1.10.5, about a month ago I had written and successfully run a piece of optimization code which uses LBFGS to optimize a system of 218 differential equations dependent on 12 parameters. Returning to this piece of code I am no longer able to run it (however it still works when run on smaller inputs). Since then my package environment _has_ changed so perhaps this is the issue? I am unsure. IWhat are the possible causes and solutions to this issue? Now when I attempt to run the optimization code on the same input that worked a month ago I get the following error:
`[545371] signal (15): Terminated
in expression starting at /home/tighemcasey/StickySquaresProject/Optimize3x3/BestDeltasRun.jl:110
jl\_gc\_szclass at /cache/build/builder-amdci4-4/julialang/julia-release-1-dot-10/src/julia\_internal.h:442 [inlined]
jl\_gc\_alloc\_ at /cache/build/builder-amdci4-4/julialang/julia-release-1-dot-10/src/julia\_internal.h:473 [inlined]
jl\_gc\_alloc at /cache/build/builder-amdci4-4/julialang/julia-release-1-dot-10/src/gc.c:3583
ijl\_new\_bits at /cache/build/builder-amdci4-4/julialang/julia-release-1-dot-10/src/datatype.c:970
ijl\_get\_nth\_field at /cache/build/builder-amdci4-4/julialang/julia-release-1-dot-10/src/datatype.c:1598
do\_apply at /cache/build/builder-amdci4-4/julialang/julia-release-1-dot-10/src/builtins.c:707
- at ./operators.jl:587 [inlined]
f1! at /home/tighemcasey/StickySquaresProject/Optimize3x3/Equations.jl:177
Void at /home/tighemcasey/.julia/packages/SciMLBase/HkaWE/src/utils.jl:482 [inlined]
CallWrapper at /home/tighemcasey/.julia/packages/FunctionWrappers/Q5cBx/src/FunctionWrappers.jl:65
unknown function (ip: 0x7f1e5ed96404)
macro expansion at /home/tighemcasey/.julia/packages/FunctionWrappers/Q5cBx/src/FunctionWrappers.jl:137 [inlined]
do\_ccall at /home/tighemcasey/.julia/packages/FunctionWrappers/Q5cBx/src/FunctionWrappers.jl:125 [inlined]
FunctionWrapper at /home/tighemcasey/.julia/packages/FunctionWrappers/Q5cBx/src/FunctionWrappers.jl:144 [inlined]
\_call at /home/tighemcasey/.julia/packages/FunctionWrappersWrappers/9XR0m/src/FunctionWrappersWrappers.jl:12 [inlined]
FunctionWrappersWrapper at /home/tighemcasey/.julia/packages/FunctionWrappersWrappers/9XR0m/src/FunctionWrappersWrappers.jl:10 [inlined]
ODEFunction at /home/tighemcasey/.julia/packages/SciMLBase/HkaWE/src/scimlfunctions.jl:2335 [inlined]
perform\_step! at /home/tighemcasey/.julia/packages/OrdinaryDiffEqTsit5/DHYtz/src/tsit\_perform\_step.jl:204
perform\_step! at /home/tighemcasey/.julia/packages/OrdinaryDiffEqTsit5/DHYtz/src/tsit\_perform\_step.jl:181 [inlined]
solve! at /home/tighemcasey/.julia/packages/OrdinaryDiffEqCore/4A2vD/src/solve.jl:551
#\_\_solve#61 at /home/tighemcasey/.julia/packages/OrdinaryDiffEqCore/4A2vD/src/solve.jl:7 [inlined]
\_\_solve at /home/tighemcasey/.julia/packages/OrdinaryDiffEqCore/4A2vD/src/solve.jl:1 [inlined]
#solve\_call#44 at /home/tighemcasey/.julia/packages/DiffEqBase/sCsah/src/solve.jl:612 [inlined]
solve\_call at /home/tighemcasey/.julia/packages/DiffEqBase/sCsah/src/solve.jl:569 [inlined]
#solve\_up#53 at /home/tighemcasey/.julia/packages/DiffEqBase/sCsah/src/solve.jl:1080 [inlined]
solve\_up at /home/tighemcasey/.julia/packages/DiffEqBase/sCsah/src/solve.jl:1066 [inlined]
#solve#51 at /home/tighemcasey/.julia/packages/DiffEqBase/sCsah/src/solve.jl:1003 [inlined]
solve at /home/tighemcasey/.julia/packages/DiffEqBase/sCsah/src/solve.jl:993
unknown function (ip: 0x7f1e5edad93f)
\_jl\_invoke at /cache/build/builder-amdci4-4/julialang/julia-release-1-dot-10/src/gf.c:2895 [inlined]
ijl\_apply\_generic at /cache/build/builder-amdci4-4/julialang/julia-release-1-dot-10/src/gf.c:3077
loss at /home/tighemcasey/StickySquaresProject/Optimize3x3/BestDeltasRun.jl:38
#1 at /home/tighemcasey/StickySquaresProject/Optimize3x3/BestDeltasRun.jl:80 [inlined]
#37 at /home/tighemcasey/.julia/packages/OptimizationBase/KIIy3/ext/OptimizationForwardDiffExt.jl:98 [inlined]
#39 at /home/tighemcasey/.julia/packages/OptimizationBase/KIIy3/ext/OptimizationForwardDiffExt.jl:102 [inlined]
vector\_mode\_dual\_eval! at /home/tighemcasey/.julia/packages/ForwardDiff/PcZ48/src/apiutils.jl:24 [inlined]
vector\_mode\_gradient! at /home/tighemcasey/.julia/packages/ForwardDiff/PcZ48/src/gradient.jl:96
gradient! at /home/tighemcasey/.julia/packages/ForwardDiff/PcZ48/src/gradient.jl:37 [inlined]
#38 at /home/tighemcasey/.julia/packages/OptimizationBase/KIIy3/ext/OptimizationForwardDiffExt.jl:102
unknown function (ip: 0x7f1e5ef88369)
\_jl\_invoke at /cache/build/builder-amdci4-4/julialang/julia-release-1-dot-10/src/gf.c:2895 [inlined]
ijl\_apply\_generic at /cache/build/builder-amdci4-4/julialang/julia-release-1-dot-10/src/gf.c:3077
jl\_apply at /cache/build/builder-amdci4-4/julialang/julia-release-1-dot-10/src/julia.h:1982 [inlined]
do\_apply at /cache/build/builder-amdci4-4/julialang/julia-release-1-dot-10/src/builtins.c:768
#19 at /home/tighemcasey/.julia/packages/OptimizationOptimJL/hDX5k/src/OptimizationOptimJL.jl:297
unknown function (ip: 0x7f1e5ef8436c)
\_jl\_invoke at /cache/build/builder-amdci4-4/julialang/julia-release-1-dot-10/src/gf.c:2895 [inlined]
ijl\_apply\_generic at /cache/build/builder-amdci4-4/julialang/julia-release-1-dot-10/src/gf.c:3077
value\_gradient!! at /home/tighemcasey/.julia/packages/NLSolversBase/kavn7/src/interface.jl:82
value\_gradient! at /home/tighemcasey/.julia/packages/NLSolversBase/kavn7/src/interface.jl:69
value\_gradient! at /home/tighemcasey/.julia/packages/Optim/ZhuZN/src/multivariate/solvers/constrained/fminbox.jl:94
unknown function (ip: 0x7f1e5eef77f0)
\_jl\_invoke at /cache/build/builder-amdci4-4/julialang/julia-release-1-dot-10/src/gf.c:2895 [inlined]
ijl\_apply\_generic at /cache/build/builder-amdci4-4/julialang/julia-release-1-dot-10/src/gf.c:3077
value\_gradient! at /home/tighemcasey/.julia/packages/Optim/ZhuZN/src/Manifolds.jl:50
ϕdϕ at /home/tighemcasey/.julia/packages/LineSearches/jgnxK/src/LineSearches.jl:83
HagerZhang at /home/tighemcasey/.julia/packages/LineSearches/jgnxK/src/hagerzhang.jl:233
HagerZhang at /home/tighemcasey/.julia/packages/LineSearches/jgnxK/src/hagerzhang.jl:102 [inlined]
perform\_linesearch! at /home/tighemcasey/.julia/packages/Optim/ZhuZN/src/utilities/perform\_linesearch.jl:58
update\_state! at /home/tighemcasey/.julia/packages/Optim/ZhuZN/src/multivariate/solvers/first\_order/l\_bfgs.jl:204
optimize at /home/tighemcasey/.julia/packages/Optim/ZhuZN/src/multivariate/optimize/optimize.jl:54
optimize at /home/tighemcasey/.julia/packages/Optim/ZhuZN/src/multivariate/solvers/constrained/fminbox.jl:390
unknown function (ip: 0x7f1e5ef83d6d)
\_jl\_invoke at /cache/build/builder-amdci4-4/julialang/julia-release-1-dot-10/src/gf.c:2895 [inlined]
ijl\_apply\_generic at /cache/build/builder-amdci4-4/julialang/julia-release-1-dot-10/src/gf.c:3077
\_\_solve at /home/tighemcasey/.julia/packages/OptimizationOptimJL/hDX5k/src/OptimizationOptimJL.jl:321
solve! at /home/tighemcasey/.julia/packages/SciMLBase/HkaWE/src/solve.jl:188
unknown function (ip: 0x7f1e5eed9a65)
\_jl\_invoke at /cache/build/builder-amdci4-4/julialang/julia-release-1-dot-10/src/gf.c:2895 [inlined]
ijl\_apply\_generic at /cache/build/builder-amdci4-4/julialang/julia-release-1-dot-10/src/gf.c:3077
#solve#647 at /home/tighemcasey/.julia/packages/SciMLBase/HkaWE/src/solve.jl:96
solve at /home/tighemcasey/.julia/packages/SciMLBase/HkaWE/src/solve.jl:93
unknown function (ip: 0x7f1e5f06e5f0)
\_jl\_invoke at /cache/build/builder-amdci4-4/julialang/julia-release-1-dot-10/src/gf.c:2895 [inlined]
ijl\_apply\_generic at /cache/build/builder-amdci4-4/julialang/julia-release-1-dot-10/src/gf.c:3077
yield\_vs\_Tmax at /home/tighemcasey/StickySquaresProject/Optimize3x3/BestDeltasRun.jl:83
\_jl\_invoke at /cache/build/builder-amdci4-4/julialang/julia-release-1-dot-10/src/gf.c:2895 [inlined]
ijl\_apply\_generic at /cache/build/builder-amdci4-4/julialang/julia-release-1-dot-10/src/gf.c:3077
jl\_apply at /cache/build/builder-amdci4-4/julialang/julia-release-1-dot-10/src/julia.h:1982 [inlined]
do\_call at /cache/build/builder-amdci4-4/julialang/julia-release-1-dot-10/src/interpreter.c:126
eval\_value at /cache/build/builder-amdci4-4/julialang/julia-release-1-dot-10/src/interpreter.c:223
eval\_stmt\_value at /cache/build/builder-amdci4-4/julialang/julia-release-1-dot-10/src/interpreter.c:174 [inlined]
eval\_body at /cache/build/builder-amdci4-4/julialang/julia-release-1-dot-10/src/interpreter.c:617
jl\_interpret\_toplevel\_thunk at /cache/build/builder-amdci4-4/julialang/julia-release-1-dot-10/src/interpreter.c:775
jl\_toplevel\_eval\_flex at /cache/build/builder-amdci4-4/julialang/julia-release-1-dot-10/src/toplevel.c:934
jl\_toplevel\_eval\_flex at /cache/build/builder-amdci4-4/julialang/julia-release-1-dot-10/src/toplevel.c:877
ijl\_toplevel\_eval\_in at /cache/build/builder-amdci4-4/julialang/julia-release-1-dot-10/src/toplevel.c:985
eval at ./boot.jl:385 [inlined]
include\_string at ./loading.jl:2076
\_jl\_invoke at /cache/build/builder-amdci4-4/julialang/julia-release-1-dot-10/src/gf.c:2895 [inlined]
ijl\_apply\_generic at /cache/build/builder-amdci4-4/julialang/julia-release-1-dot-10/src/gf.c:3077
\_include at ./loading.jl:2136
include at ./Base.jl:495
jfptr\_include\_46447.1 at /snap/julia/104/lib/julia/sys.so (unknown line)
\_jl\_invoke at /cache/build/builder-amdci4-4/julialang/julia-release-1-dot-10/src/gf.c:2895 [inlined]
ijl\_apply\_generic at /cache/build/builder-amdci4-4/julialang/julia-release-1-dot-10/src/gf.c:3077
exec\_options at ./client.jl:318
\_start at ./client.jl:552
jfptr\_\_start\_82798.1 at /snap/julia/104/lib/julia/sys.so (unknown line)
\_jl\_invoke at /cache/build/builder-amdci4-4/julialang/julia-release-1-dot-10/src/gf.c:2895 [inlined]
ijl\_apply\_generic at /cache/build/builder-amdci4-4/julialang/julia-release-1-dot-10/src/gf.c:3077
jl\_apply at /cache/build/builder-amdci4-4/julialang/julia-release-1-dot-10/src/julia.h:1982 [inlined]
true\_main at /cache/build/builder-amdci4-4/julialang/julia-release-1-dot-10/src/jlapi.c:582
jl\_repl\_entrypoint at /cache/build/builder-amdci4-4/julialang/julia-release-1-dot-10/src/jlapi.c:731
main at /cache/build/builder-amdci4-4/julialang/julia-release-1-dot-10/cli/loader\_exe.c:58
unknown function (ip: 0x7f1f8e031d8f)
\_\_libc\_start\_main at /lib/x86\_64-linux-gnu/libc.so.6 (unknown line)
unknown function (ip: 0x4010b8)
unknown function (ip: (nil))
Allocations: 46790740815 (Pool: 46438082700; Big: 352658115); GC: 59429`
---
### Author:  [@ufechner7](https://discourse.julialang.org/u/ufechner7)
#### Post date: [September 1, 2024, 7:37am UTC](https://discourse.julialang.org/t/optimization-program-which-previously-worked-is-no-longer-working/118900/2 "2024-09-01T07:37:02Z")
> [@tighem](#):
>
> Since then my package environment _has_ changed so perhaps this is the issue?
Always make a backup copy of `Manifest.toml` when your code works to be able to reproduce the working environment if needed.
And it is hard to debug the exception you got without seeing your code and the output of `using Pkg; Pkg.status()`
---
### Author:  [@ChrisRackauckas](https://discourse.julialang.org/u/ChrisRackauckas)
#### Post date: [September 1, 2024, 3:00pm UTC](https://discourse.julialang.org/t/optimization-program-which-previously-worked-is-no-longer-working/118900/3 "2024-09-01T15:00:53Z")
This would need reproducible code.
> [@tighem](#):
>
> `[545371] signal (15): Terminated
> in expression starting at /home/tighemcasey/StickySquaresProject/Optimize3x3/BestDeltasRun.jl:110
> jl\_gc\_szclass at /cache/build/builder-amdci4-4/julialang/julia-release-1-dot-10/src/julia\_internal.h:442 [inlined]
> jl\_gc\_alloc\_ at /cache/build/builder-amdci4-4/julialang/julia-release-1-dot-10/src/julia\_internal.h:473 [inlined]
> jl\_gc\_alloc at /cache/build/builder-amdci4-4/julialang/julia-release-1-dot-10/src/gc.c:3583
> ijl\_new\_bits at /cache/build/builder-amdci4-4/julialang/julia-release-1-dot-10/src/datatype.c:970
> ijl\_get\_nth\_field at /cache/build/builder-amdci4-4/julialang/julia-release-1-dot-10/src/datatype.c:1598
> do\_apply at /cache/build/builder-amdci4-4/julialang/julia-release-1-dot-10/src/builtins.c:707
>
> - at ./operators.jl:587 [inlined]
> f1! at /home/tighemcasey/StickySquaresProject/Optimize3x3/Equations.jl:177
> Void at /home/tighemcasey/.julia/packages/SciMLBase/HkaWE/src/utils.jl:482 [inlined]
> CallWrapper at /home/tighemcasey/.juli
Are you using Julia v1.10.5? There’s GC fixes that are helpful. If you are on v1.10.5, are you using `@inbounds` anywhere in your code? What’s at that line of code?
---
### Author:  [@tighem](https://discourse.julialang.org/u/tighem)
#### Post date: [September 1, 2024, 7:53pm UTC](https://discourse.julialang.org/t/optimization-program-which-previously-worked-is-no-longer-working/118900/4 "2024-09-01T19:53:09Z")
Here is the output of Pkg.installed():
```julia
"CSV" => v"0.10.14"
"DifferentialEquations" => v"7.13.0"
"DataFrames" => v"1.6.1"
"Optimization" => v"3.27.0"
"SciMLSensitivity" => v"7.65.0"
"ChangePrecision" => v"1.1.0"
"OptimizationOptimJL" => v"0.3.2"
```
Here is the optimization code, the file Constants.txt simply contains the numerical constants, f1! assigns the value of dC as a non-linear function of deltas and C.
````using
#=
THIS FILE PRODUCES OPTIMAL BOND ENERGIES AND YIELDS AT THOSE BOND ENERGIES AT A GIVEN SET OF TIMESTEPS,
OUTPUT IS TO FILES 'YieldvsTime.txt' AND 'BindingEnergyvsTime.txt',
NOTE THAT THE OUTPUT OF BINDING ENERGIES IS IN LEXICOGRAPHICAL ORDER
=#
# ------------------------------------ I/O and Inclusions ------------------------------------ #
# Setup Files
include("Equations.jl")
constantspath = joinpath(@ __DIR__ ,"Constants.txt")
# Output Files
Yieldpath = joinpath(@ __DIR__ ,"YieldvsTime.txt")
Bindingpath = joinpath(@ __DIR__ ,"BindingEnergyvsTime.txt")
#Read Necessary Parameters from 'Constants.txt'
params = readdlm(constantspath,skipstart=2)
concentration = params[4,1]::Float64
numblocks = params[7,1]::Int64
numEdges = params[2,1]::Int64
numVertices = params[3,1]::Int64
C = Vector{Float64}(params[5,1:numblocks])
dC = Vector{Float64}(params[6,1:numblocks])
# Write output to file
function writeoutput(Yieldpath, Bindingpath, concvec, deltaarray)
#Write Header
maxtime = tvec[end]::Float64
deltastring = ""
for k in 1:numEdges
deltastring = deltastring*"-delta$k: "
end
yieldheader = "density = $concentration ; Initial deltas = $deltas ; \n Initial concentrations = $C ;\
max time = $maxtime \n final C(Target Structure): maxtime: \n"
bindingheader = "density = $concentration ; Initial deltas = $deltas ; \n Initial concentrations = $C ;\
max time = $maxtime \n"*deltastring*" maxtime: \n"
write(Yieldpath,yieldheader)
write(Bindingpath, bindingheader)
#Write Data
CSV.write(Yieldpath,Tables.table(concvec),append=true)
CSV.write(Bindingpath,Tables.table(deltaarray),append=true)
end
# ------------------------------------ Input Parameters ------------------------------------ #
tvec = [1000.0,10000.0,100000.0] # Time Steps Optimized At
deltas = [-0.3546379129258437, -1.0306384019336112, -2.765023007323766, -2.5384636391235658, -1.816160723724639, -6.0154802607957905, -4.734737685358027, -5.7959495615945364, -0.5149777996841498, -3.536189921414051, -9.460076287814163, -2.9729010182065396]
tspan = (0.0,100.0) # Time span for initial solve
maxenergy = -15.0 # Boundary condition on bonding energies
#Parameters for ODE solver and optimization
adtype = Optimization.AutoForwardDiff()
maxoptiterations = 200
#define ode problem
problem = ODEProblem(f1!,C,tspan,deltas)
sol = solve(problem,save_on = false)
# ------------------------------------ Optimization ------------------------------------ #
#Loss function
function loss(newp,t)
newproblem = remake(problem,p = newp, tspan = (0.0,t))
sol = solve(newproblem, Tsit5(), save_on = false)
if Sys.free_memory() / 2^30 < 15 #Possibly helps with memory issues
GC.gc()
end
loss = -sol[end,end] #Final concentration of target structure
return loss, sol
end
function yield_vs_Tmax(tvec,problem,adtype)
#Initialize storage for data
deltaarray = Array{Float64}(undef,size(tvec)[1],numEdges+1)
concvec = Array{Float64}(undef,size(tvec)[1],2)
i = 1 #Used for indexing
#Optimization code for each Tmax:
for t ∈ tvec
optf = Optimization.OptimizationFunction((x, p) -> loss(x,t), adtype) #Define optimization loss function, in this case maximizes concentration of final structure
optprob = Optimization.OptimizationProblem(optf, deltas, lb = ones(numEdges).*maxenergy, ub = zeros(numEdges)) #define problem and boundary conditions
result_ode = Optimization.solve(optprob, LBFGS(), maxiters = maxoptiterations)
for j ∈ 1:numEdges+1
if j ≤ numEdges
deltaarray[i,j] = -result_ode.u[j]
else
#deltaarray[i,:] = sort(deltaarray[i,:],rev=true) #In the case of symmetry a sorted output might make more sense
deltaarray[i,j] = t
end
end
concvec[i,1] = -result_ode.objective*numVertices/concentration
concvec[i,2] = t
i += 1
println("Done optimization for t = $t")
end
#Write results to file
writeoutput(Yieldpath,Bindingpath, concvec, deltaarray)
end
println("Started Parameter Optimization")
yield_vs_Tmax(tvec,problem,adtype)
println("Completed Parameter Optimization")```
````
---
### Author:  [@tighem](https://discourse.julialang.org/u/tighem)
#### Post date: [September 1, 2024, 7:56pm UTC](https://discourse.julialang.org/t/optimization-program-which-previously-worked-is-no-longer-working/118900/5 "2024-09-01T19:56:15Z")
I am not using @inline anywhere.
---
### Author:  [@ChrisRackauckas](https://discourse.julialang.org/u/ChrisRackauckas)
#### Post date: [September 1, 2024, 9:25pm UTC](https://discourse.julialang.org/t/optimization-program-which-previously-worked-is-no-longer-working/118900/6 "2024-09-01T21:25:03Z")
And Julia v1.10.5?
---
### Author:  [@tighem](https://discourse.julialang.org/u/tighem)
#### Post date: [September 1, 2024, 9:39pm UTC](https://discourse.julialang.org/t/optimization-program-which-previously-worked-is-no-longer-working/118900/7 "2024-09-01T21:39:56Z")
Yes
---
### Author:  [@ChrisRackauckas](https://discourse.julialang.org/u/ChrisRackauckas)
#### Post date: [September 1, 2024, 9:46pm UTC](https://discourse.julialang.org/t/optimization-program-which-previously-worked-is-no-longer-working/118900/8 "2024-09-01T21:46:54Z")
> [@tighem](#):
>
> `include("Equations.jl")`
and?
---
### Author:  [@Elrod](https://discourse.julialang.org/u/Elrod)
#### Post date: [September 2, 2024, 12:24am UTC](https://discourse.julialang.org/t/optimization-program-which-previously-worked-is-no-longer-working/118900/9 "2024-09-02T00:24:02Z")
`@inline` and `@inbounds` do two very different things, but I’m assuming you do neither. You can start Julia with `--check-bounds=yes` to confirm that it isn’t some other package using `@inbounds` causing the problem.
---
### Author:  [@tighem](https://discourse.julialang.org/u/tighem)
#### Post date: [September 19, 2024, 12:20am UTC](https://discourse.julialang.org/t/optimization-program-which-previously-worked-is-no-longer-working/118900/10 "2024-09-19T00:20:06Z")
Here is the equations function; it is over the character limit substantially
[Equations.jl](https://discourse.julialang.org/uploads/short-url/fhUKx7gd8By4JrJBzAbjUj2WEJs.jl) (145.9 KB)
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### Author:  [@tighem](https://discourse.julialang.org/u/tighem)
#### Post date: [September 19, 2024, 12:30am UTC](https://discourse.julialang.org/t/optimization-program-which-previously-worked-is-no-longer-working/118900/12 "2024-09-19T00:30:39Z")
yes, I use neither. I will try running the program with this startup option.
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### Author:  [@tighem](https://discourse.julialang.org/u/tighem)
#### Post date: [September 22, 2024, 9:15pm UTC](https://discourse.julialang.org/t/optimization-program-which-previously-worked-is-no-longer-working/118900/13 "2024-09-22T21:15:06Z")
The program has the same error when run with these options.
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### Author:  [@ChrisRackauckas](https://discourse.julialang.org/u/ChrisRackauckas)
#### Post date: [September 22, 2024, 10:16pm UTC](https://discourse.julialang.org/t/optimization-program-which-previously-worked-is-no-longer-working/118900/14 "2024-09-22T22:16:41Z")
What’s the reproducer and the error?