Parallel computing on MacOs Sequoia

Installation and Setup
1

Hello,

I am trying to run an estimated DSGE model in parallel using Dynare 6.2 on macOS Sequoia 15.2 with MATLAB 2024b. My system has a 14-core M4 Pro CPU, and I have set 1 thread per job in both the configuration file and the hidden structure that contains the necessary information to enable parallel computing in Dynare. However, I am only able to run two additional instances of MATLAB.

How can I resolve this issue?

Best regards,
Federico

2

Can you provide the relevant parts of the configuration file that you set?

3

Thanks for your reply! Here is the configuration file I use:

[cluster]

Name = Local

Members = n1

[node]

Name = n1

ComputerName = localhost

CPUnbr = 14

NumberOfThreadsPerJob = 1

MatlabOctavePath=/Applications/MATLAB_R2024b.app/bin/matlab

The hidden structure containing the settings for the parallel computing in Dynare has been created as follows:

parallel_config = struct();

parallel_config.cluster(1).Name = ‘Local’;

parallel_config.cluster(1).Members = {‘n1’};

parallel_config.node(1).Name = ‘n1’;

parallel_config.node(1).ComputerName = ‘localhost’;

parallel_config.node(1).CPUnbr = 14;

parallel_config.node(1).NumberOfThreadsPerJob = 1;

parallel_config.node(1).MatlabOctavePath = ‘/Applications/MATLAB_R2024b.app/bin/matlab’;

mkdir(‘~/.dynare’)

save(‘~/.dynare/parallelnodes.mat’, ‘parallel_config’);

4

Which command are you running in Dynare for which you expect more than 2 instances of Matlab?

5

Here is the command:

estimation(datafile=Data,
first_obs=1,
nobs=98,
kalman_algo=1,
lik_init=1,
mh_replic=1000,
posterior_sampling_method=‘slice’,
mh_nblocks=7,
use_univariate_filters_if_singularity_is_detected=0,
heteroskedastic_filter,
mh_drop=0.20,
bayesian_irf,
graph_format=(fig)). Anyway I have updated MacOs to Sequoia 15.3 and now it seems to work properly

6

I see. The fact that an upgrade of the operating system solved the issue suggests that it was not a problem on the end of Dynare.