Hi! How about this patch? It adds a new symbol into GOMP_4.0.1 symver, so it would be nice to include it into GCC 5 release.
On 14 Nov 02:53, Ilya Verbin wrote: > This patch fixes offloading from dlopened libraries, part 1 is for libgomp and > part 2 is for intelmic plugin. > > How it works: > When a library is loaded it calls GOMP_offload_register as usually. > At this time some devices may already be initialized, and some may be not. > Therefore libgomp goes through all devices and for the initialized devices > calls > GOMP_OFFLOAD_load_image, then receives corresponding addresses and inserts > them > into splay tree. Also it fills offload_images array for lazy Initialization. > > When the library is unloaded it calls GOMP_offload_unregister. > This function also need to go through all devices and to call > GOMP_OFFLOAD_unload_image for all initialized devices. Also it removes mapped > addresses from corresponding splay trees and pending images from the array. > > Any thoughts on that? > > Thomas, Julian, > Will this approach work for OpenACC+PTX? I hope that it is general enough. > Yeah, I understand that this change will require some efforts on your part to > rebase the patches, but it would be good to define a common libgomp<->plugin > interface as early as possible. -- Ilya
