Qualche settimana fa Intel e AMD hanno raggiunto un accordo dove chiudono la causa legale per concorrenza sleale ai danni della stessa AMD
Oltre ad un cospicuo risarcimento in denaro e la cessazione degli "sconti" sulle CPU Intel ci sarà anche
l'eliminazione del "
Cripple AMD", cioè la disattivazione delle
ottimizzazioni in presenza di CPU AMD.
"Agner Fog details this particularly nasty examples of Intel's anticompetitive practices quite well. Intel's compiler can produce different versions of pieces of code, with each version being optimised for a specific processor and/or instruction set (SSE2, SSE3, etc.). The system detects which CPU it's running on and chooses the optimal code path accordingly; the CPU dispatcher, as it's called.
"However, the Intel CPU dispatcher does not only check which instruction set is supported by the CPU, it also checks the vendor ID string," Fog details, "If the vendor string says 'GenuineIntel' then it uses the optimal code path. If the CPU is not from Intel then, in most cases, it will run the slowest possible version of the code, even if the CPU is fully compatible with a better version."
Questa scorretta pratica dei compilatori Intel è già
BEN NOTA nel mondo software soprattutto nel campo dei programmi dei Bench sintetici.
La FTC (Federal Trade Commission) che ha intentato causa contro la stessa Intel vuole che sia fatto molto di più per non penalizzare le altre case produttori di CPU X86 quali VIA.
"Requiring that, with respect to those Intel customers that purchased from Intel a software compiler that had or has the design or effect of impairing the actual or apparent performance of microprocessors not manufactured by Intel ("Defective Compiler"), as described in the Complaint:
1. Intel provide them, at no additional charge, a substitute compiler that is not a Defective Compiler;
2. Intel compensate them for the cost of recompiling the software they had compiled on the Defective Compiler and of substituting, and distributing to their own customers, the recompiled software for software compiled on a Defective Compiler; and
3. Intel give public notice and warning, in a manner likely to be communicated to persons that have purchased software compiled on Defective Compilers purchased from Intel, of the possible need to replace that software."
Con questo accordo si metterà la parola fine al comportamento
razzista dei compilatori Intel, la quale hanno portato un gran vantaggio alle CPU Intel in questi ultimi anni.
Clicca qui...