[Gretl-devel] Re: regls and MPI (was Re: Internal error from the regls addon)
On Fri, May 20, 2022 at 2:53 PM Sven Schreiber <svetosch(a)gmx.net> wrote:
Am 18.05.2022 um 14:13 schrieb Sven Schreiber:
> Hi,
> I'm trying to use the regls() function (from the regls addon) ...
OK, carrying on exploring the regls world, sorry for the many emails; but:
The cross-validation result output table mentioned in the documentation
p. 4 (with column headings s, MSE, se) is not shown here for me in the
case of the sample script, for example. When I switch off MPI, then I
can see it.
This might be Windows-specific, because in the past grabbing the MPI
output turned out to be difficult sometimes.
Thanks for the report. Yes, this is Windows-specific, and at present I
suspect it's due to a GLib bug. I plan to experiment with an update to
GLib.
We have two ways of getting output back from MPI into the GUI: a
"realtime" method that grabs chunks of output as they become
available, and a "wait till it's done" method. The first one works
nicely on Linux but I haven't managed to get it working on Windows.
Today I tried the regls example on both platforms using the second
method -- calling the same GLib function in both cases. I got all the
output on Linux but not on Windows. Hence my thought that GLib (in the
version we've been packaging for Windows) may not be right.
Allin