I currently have Stata/SE 11.2 for Windows (32-bit) in my laptop and I am running Stata/MP 12.1 for Windows (64-bit) in my desktop. I am estimating a probit/logit model with over half a million observations. When I run the probit model with maximum likelihood
(ML) in Stata/SE 11.2 in my laptop, after 6 iterations and 11 seconds I get an estimation (the log pseudolikelihood converges to -367498.27); when I run exactly the same model with the same data using ML in Stata/MP 12.1 in my desktop the ML gets stuck in
iteration -367496.9(backed up), and it takes over 10000 iterations or more to get an output (which may not converge) and these take more than 3 days.
The commands I use are:
eststo Prob1: probit depvar indvars, vce(r)
Can anyone please help me understand what is going on? How can I solve this problem? I am not able to use my powerful desktop for my estimations and end up estimating everything on my laptop with very low memory.