"upcast_attn":OptionInfo(False,"Upcast cross attention layer to float32"),
"randn_source":OptionInfo("GPU","Random number generator source.",gr.Radio,{"choices":["GPU","CPU","NV"]}).info("changes seeds drastically; use CPU to produce the same picture across different videocard vendors; use NV to produce same picture as on NVidia videocards"),
"tiling":OptionInfo(False,"Tiling",infotext='Tiling').info("produce a tileable picture"),
"sd_refiner_checkpoint":OptionInfo("None","Refiner checkpoint",gr.Dropdown,lambda:{"choices":["None"]+shared_items.list_checkpoint_tiles()},refresh=shared_items.refresh_checkpoints,infotext="Refiner").info("switch to another model in the middle of generation"),
"sd_refiner_switch_at":OptionInfo(1.0,"Refiner switch at",gr.Slider,{"minimum":0.01,"maximum":1.0,"step":0.01},infotext='Refiner switch at').info("fraction of sampling steps when the swtch to refiner model should happen; 1=never, 0.5=switch in the middle of generation"),