Feature/issue update sundials 561

[wds15]

Summary

Update Sundials to 5.6.1

Tests

No new tests

Side Effects

Nope

Release notes

Upgrade Sundials to 5.6.1

Checklist

• Math issue upgrade sundials #2282

• Copyright holder: Sebastian Weber

  The copyright holder is typically you or your assignee, such as a university or company. By submitting this pull request, the copyright holder is agreeing to the license the submitted work under the following licenses:
  - Code: BSD 3-clause (https://opensource.org/licenses/BSD-3-Clause)
  - Documentation: CC-BY 4.0 (https://creativecommons.org/licenses/by/4.0/)

• the basic tests are passing

  • unit tests pass (to run, use: ./runTests.py test/unit)
  • header checks pass, (make test-headers)
  • dependencies checks pass, (make test-math-dependencies)
  • docs build, (make doxygen)
  • code passes the built in C++ standards checks (make cpplint)

• the code is written in idiomatic C++ and changes are documented in the doxygen

• the new changes are tested

[stan-buildbot]

---

Name	Old Result	New Result	Ratio	Performance change( 1 - new / old )
gp_pois_regr/gp_pois_regr.stan	3.4	3.47	0.98	-2.19% slower
low_dim_corr_gauss/low_dim_corr_gauss.stan	0.02	0.02	0.99	-0.91% slower
eight_schools/eight_schools.stan	0.11	0.11	0.99	-1.4% slower
gp_regr/gp_regr.stan	0.15	0.15	1.0	-0.25% slower
irt_2pl/irt_2pl.stan	5.2	5.13	1.01	1.35% faster
performance.compilation	91.57	90.06	1.02	1.65% faster
low_dim_gauss_mix_collapse/low_dim_gauss_mix_collapse.stan	8.64	8.64	1.0	-0.07% slower
pkpd/one_comp_mm_elim_abs.stan	29.48	28.73	1.03	2.53% faster
sir/sir.stan	134.15	137.79	0.97	-2.71% slower
gp_regr/gen_gp_data.stan	0.04	0.04	0.99	-1.45% slower
low_dim_gauss_mix/low_dim_gauss_mix.stan	3.07	3.17	0.97	-3.2% slower
pkpd/sim_one_comp_mm_elim_abs.stan	0.39	0.37	1.05	5.21% faster
arK/arK.stan	2.51	2.51	1.0	0.17% faster
arma/arma.stan	0.61	0.62	0.99	-0.72% slower
garch/garch.stan	0.67	0.68	0.99	-0.68% slower
Mean result: 0.998674169556

---

Jenkins Console Log
Blue Ocean
Commit hash: e883b1a

---

Machine information

ProductName: Mac OS X ProductVersion: 10.11.6 BuildVersion: 15G22010

CPU:
Intel(R) Xeon(R) CPU E5-1680 v2 @ 3.00GHz

G++:
Configured with: --prefix=/Applications/Xcode.app/Contents/Developer/usr --with-gxx-include-dir=/usr/include/c++/4.2.1
Apple LLVM version 7.0.2 (clang-700.1.81)
Target: x86_64-apple-darwin15.6.0
Thread model: posix

Clang:
Apple LLVM version 7.0.2 (clang-700.1.81)
Target: x86_64-apple-darwin15.6.0
Thread model: posix

[rok-cesnovar]

Looks great. Thanks.