** Description changed: - Our partners at Intel have informed us that we are missing a very important build flag for the IGC package in Noble: + Our partners at Intel have informed us that we are missing a very important build flag for the IGC package: -DIGC_OPTION__USE_KHRONOS_SPIRV_TRANSLATOR_IN_SC=1 Without this build flag enabled, we should expect to see instabilities such as pytorch crashes. ---------------------- SRU Template ---------------------- [ Impact ] - * Users will notice that some software that depends on IGC will be less + * Users will notice that some software that depends on IGC will be less stable [ Test Plan ] - * Intel has done testing on their end and assures us that this is a necessary build flag for their software stack to work as intended. + * Intel has done testing on their end and assures us that this is a necessary build flag for their software stack to work as intended. * As Pavel has mentioned below, we can check that this is working as intended by running "$ ocloc -device mtl -spirv_input -file ./a.spv" [ Where problems could occur ] From our contact at Intel: "Without the build flag, IGC will not link to translator at all [...] it uses its own internal translator, which is wrong, So this option enables it to link to the distro's translator" So while this is a fix, it does carry the inherent risk that we are switching to a different translator, which will change the behaviors of any software that uses the translator.
** Summary changed: - Important build flag left out of Noble IGC build + Important build flag left out of IGC build -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to intel-graphics-compiler in Ubuntu. https://bugs.launchpad.net/bugs/2085370 Title: Important build flag left out of IGC build To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/intel-graphics-compiler/+bug/2085370/+subscriptions _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp
