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I hope that the later version will support Acceleration on GPU，I added two lines in mdp file for giving a force to polymers that i used： acc-grps = MOL antif accelerate = 0.001790 0.0 0.0 -0.0004475 0.0 0.0。But the calculating speed is much more slower than the system without force.Cause the acceleration model can not be calculated with GPU，we hope that this problem will be solved in future version.
This is the relevant section in my log file：
Update task can not run on the GPU, because the following condition(s) were not satisfied:
Acceleration is not supported.
1 GPU selected for this run.
Mapping of GPU IDs to the 1 GPU task in the 1 rank on this node:
PP:0
PP tasks will do (non-perturbed) short-ranged interactions on the GPU
PP task will update and constrain coordinates on the CPU