When using the workflow plugin, EC2 nodes are not provisioned in parallel. Say that I have two parallel steps that both use a dynamically provisioned EC2 node. These two parallel steps request nodes in a serial fashion.

When using the old pipeline plugin, the build jobs would each request a node and two nodes would get provisioned.

When using the new workflow/pipeline plugin only a single node is provisioned when entering this step. The first step takes the node, and then a second node is requested against EC2.

It would be ideal if the workflow plugin could request 2 nodes to be provisioned in parallel.