[Octave-bug-tracker] [bug #58795] Tests for ode15i and ode15s fail for Octave 32bit on Windows

[Hg200]

Follow-up Comment #14, bug #58795 (project octave):

I had a closer look to the ODE problem and can share following observations:

1.)
The following switch [1] solves the problem on the win32 target for me:

++
-DSUNDIALS_INDEX_TYPE=int32_t
--

With this, the testsuite-odetests run without errors. I am currently on
Sundials-ida-5.3.0, mxe-Octave hg id a65cacd, Octave hg id a61b651 + fix bug
#58807. A patch that sets the sundials index size to 32 if $(ENABLE_64) ==
"no" is attached. Would be good if somebody can confirm.

2.)
BLAS - switching has no effect (same as Markus reported in comment #13).

3.)
"ode15i" is not completely "dead". Some simple differential equations are
solved correctly. Only "test ode15i" causes big trouble. Why?

4.)
"test ode15i" runs without errors under the Octave-5.2.0-win32 executable. So
my question is: Did the problem come with a package update or have the
compiler switches changed since Octave 5.2.0? The reason for the question is
that "sunindextype" has been around for quite some time. So the question is,
why is the problem occurring right now?

[1]: IDA v3.2.0: "... added the SUNDIALS_INDEX_TYPE CMake option to select the
sunindextype integer size".

https://computing.llnl.gov/sites/default/files/public/ida_guide.pdf



(file #49555)
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