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