sequential block of code inside parallel section

Hello,

I am trying to do some operations inside a parallel section sequentially.

In every parallel framework that I have worked with, there is something like mutexes, semaphores, critical etc which allow you to do this.

Matlab lacks this features and a relevant submission that I found in the file exchange, which was also suggested by a mathworks engineer in another question, was full of persistent variables which could possibly lead to bugs.

Any ideas?

thanks

[Sarah Wait Zaranek]

Anastasios - Which parallel construct are you using? Parfor, spmd?

Answer 1

[Walter Roberson]

spmd has some tools for this. See labbarrier and the lab send and receive functions.

Unfortunately mutexes over networks are difficult. See e.g., the discussion http://www.mathworks.com/matlabcentral/newsreader/view_thread/279510