RuntimeError: submission must have at least 1 task

[kyladevilla]

Hello, I am having the same issue as discussed in #547, where at the initial MD iteration I keep getting a "RuntimeError: submission must have at least 1 task."

However the solution posted there has not worked for me and I'd be very grateful for any help debugging the issue!

#547 indicated this was an issue with "sys_configs," but I believe I'm following the correct format:

I've also tried this with multiple lists in sys_configs, i.e.

and without specifying a sys_configs_prefix but rather enumerating an entire path for the sys_configs:

and with using a wildcard character:

as well as every possible combination of leading and trailing slashes on both the "sys_configs_prefix" and "sys_batch_size" entries.

I thought maybe my model_devi settings might be the issue but I believe these are also properly formatted:

and I have definitely confirmed this path exists:

could anyone point me towards a solution? Thank you!

[AnguseZhang]

Let's assume the iteration index is 0.
Then please first ls iter.000000/01.model_devi/ and see whether there're some task folders named task.xxx.xxxxxx.
If not, you can reset the last index in record.dpgen to be 0 2 and rerun dpgen.
Let's see what happens.

[kyladevilla]

Hi Anguse!

Thank you so much for the rapid reply.

I realized my problem was in part that I had initially had the "sys_configs" wrongly formatted such that the iter.000000/01.model_devi/confs/000.0000.poscar file was a link to root. After correcting the "sys_configs" format I hadn't deleted those bad files. Deleting the entire iter.000000/01.model_devi/ directory and rolling "record.dpgen" back to "0 2" resulted in the MD proceeding as expected.

Thanks again!