RStan giving (un)serialize error and removing -mtune/-march does not work after Windows 10 update

Interfaces RStan
1

Hi,

I have recently updated to Windows 10 and have subsequently had to reinstall and configure RStan using the instructions here, https://github.com/stan-dev/rstan/wiki/RStan-Getting-Started. At some point in doing so, some of my models (that were fitting fine before the update) are no longer running properly. I keep getting the error below.

Error in unserialize(socklist[[n]]) : error reading from connection
Error in serialize(data, node$con, xdr = FALSE) : 
  error writing to connection

I first tried to run everything as administrator but no luck.

I then found solutions referring to “-mtune” and “-march”. I tried manually removing these from the Makevars.R file (see below) but again no luck. This was based on my (layman’s!) interpretation of the instructions here: Error in (un)serialize rstan for Windows

From:

CXX14FLAGS=-O3 -march=native -mtune=native
CXX11FLAGS=-O3 -march=native -mtune=native

To:

CXX14FLAGS=-O3
CXX11FLAGS=-O3

The error seems to only apply to cases where I have 2+ chains. When I reduce the number of chains to 1, R either aborts the session or the model runs slowly (independent of the number of cores).

Any help would be greatly appreciated!!!

1 Like
2

Do you have something called the “Killer Control Center Application” installed?

3

No, just checked and it’s not installed.

Should I install it? @bgoodri