They sold multiple generations of these huge NUMA machines. First were the MIPS-based Origin 2000 and 3000 (https://en.wikipedia.org/wiki/SGI_Origin_2000 https

They sold multiple generations of these huge NUMA machines. First were the MIPS-based Origin 2000 and 3000 (https://en.wikipedia.org/wiki/SGI_Origin_2000 https://en.wikipedia.org/wiki/SGI_Origin_2000 and https://en.wikipedia.org/wiki/SGI_Origin_3000_and_Onyx_3000#Origin_3000 https://en.wikipedia.org/wiki/SGI_Origin_3000_and_Onyx_3000#... ) supporting up to 512 CPU's running Irix, then came the Itanium-based Altix (https://en.wikipedia.org/wiki/Altix https://en.wikipedia.org/wiki/Altix ) with up to 4096 cores running Linux, then finally the x86-64 based Altix UV supporting up to 2048 cores, also running Linux.