ESERK4

[deeepeshthakur]

@ChrisRackauckas ESERK4 from Extrapolated Stabilized Explicit Runge–Kutta Methods. It's Passing the tests, But the compilation time is more than usual.

using Plots
probArr = Vector{ODEProblem}(undef, 2)
probArr[1] = prob_ode_linear
probArr[2] = prob_ode_2Dlinear
dts = 1 .//2 .^(8:-1:4)
testTol = 0.1
sim = test_convergence(dts,probArr[1],ESERK4())
@test sim.𝒪est[:l∞] ≈ 4 atol=testTol
plot(sim)

sim = test_convergence(dts,probArr[2],ESERK4())
@test sim.𝒪est[:l∞] ≈ 4 atol=testTol
plot(sim)

#2

[coveralls]

Coverage increased (+6.6%) to 84.341% when pulling 5c2563a on deeepeshthakur:ESERK4 into 22e0af8 on JuliaDiffEq:master.

[codecov]

Codecov Report

Merging #737 into master will increase coverage by 0.04%.
The diff coverage is 89.43%.

@@            Coverage Diff             @@
##           master     #737      +/-   ##
==========================================
+ Coverage   80.07%   80.12%   +0.04%     
==========================================
  Files          88       88              
  Lines       28989    29134     +145     
==========================================
+ Hits        23214    23344     +130     
- Misses       5775     5790      +15

Impacted Files	Coverage Δ
src/OrdinaryDiffEq.jl	100% <ø> (ø)	⬆️
src/tableaus/rkc_tableaus.jl	100% <ø> (ø)	⬆️
src/alg_utils.jl	32.54% <0%> (-0.08%)	⬇️
src/algorithms.jl	96.86% <100%> (+0.01%)	⬆️
src/caches/rkc_caches.jl	96.84% <100%> (+0.5%)	⬆️
src/rkc_utils.jl	75.58% <38.46%> (-3.31%)	⬇️
src/perform_step/rkc_perform_step.jl	87.08% <94.73%> (+1.1%)	⬆️

---

Continue to review full report at Codecov.

Legend - Click here to learn more
Δ = absolute <relative> (impact), ø = not affected, ? = missing data
Powered by Codecov. Last update 22e0af8...5c2563a. Read the comment docs.

[deeepeshthakur]

@ChrisRackauckas All RKC test are working fine when I'm testing them locally but failing here.
Result when run locally

This is the error:

Power Iteration of Runge-Kutta-Chebyshev Tests: Error During Test at /home/travis/build/JuliaDiffEq/OrdinaryDiffEq.jl/test/ode/rkc_tests.jl:9
  Got exception outside of a @test
  TypeError: in new, expected NTuple{49,Int64}, got NTuple{49,Int64}

[deeepeshthakur]

@ChrisRackauckas Travis error is because of Extrapolation methods and I fixed the type mismatch error. And ESERK4 is passing all tests now.