X-Validation (parallel) gets stuck in validation

cliftonarms

I have an 8 core 32Gb machine and am currently trying to implement X-Validation  (parallel) within my design to make use of the PCs computational power.

The Rapidminer status bar shows multiple threads running but very quickly things stall in a validation task, and the process just gets stuck there showing just one validation task counting the seconds.

There is still 50% ram left so no issue with running out of memory.

Also, the normal X-Validation process runs in the same design perfectly for many hundreds and thousands of iterations.

Any ideas anyone, or is there a history of this ?.

MariusHelf

Unfortunately, the parallel X-Validation has some hiccups. To get the most out of your machine, you could think about installing RapidAnalytics, which is capable of easily running several processes at once, or to start several RapidMiner instances at the same time to run several processes at a time instead of parallelizing a single process.

Best regards,
Marius