https://community.intel.com/t5/Intel-Software-Guard-Extensions/Why-SGX-multi-threading-stop-gaining-after-16-threads/m-p/1562285#M6089 <P><SPAN>I run several open-source fully parallel SGX programs on Azure VM with SGX (DC48s_v3, EPC size 256 GB, vCPU = 48 cores, set numTCS=48), but their time consumed are not speeded up much after I use larger thread numbers. E.g., almost all full parallel SGX programs stop at ~9x speedup after 16 threads.</SPAN></P><P><SPAN>What are the possible reasons that the extra 16 ~ 48-th threads in SGX do not help with the parallel program execution?</SPAN></P> Fri, 12 Jan 2024 15:42:34 GMT Sean_ 2024-01-12T15:42:34Z https://community.intel.com/t5/Intel-Software-Guard-Extensions/Why-SGX-multi-threading-stop-gaining-after-16-threads/m-p/1562285#M6089 <P><SPAN>I run several open-source fully parallel SGX programs on Azure VM with SGX (DC48s_v3, EPC size 256 GB, vCPU = 48 cores, set numTCS=48), but their time consumed are not speeded up much after I use larger thread numbers. E.g., almost all full parallel SGX programs stop at ~9x speedup after 16 threads.</SPAN></P><P><SPAN>What are the possible reasons that the extra 16 ~ 48-th threads in SGX do not help with the parallel program execution?</SPAN></P> Fri, 12 Jan 2024 15:42:34 GMT https://community.intel.com/t5/Intel-Software-Guard-Extensions/Why-SGX-multi-threading-stop-gaining-after-16-threads/m-p/1562285#M6089 Sean_ 2024-01-12T15:42:34Z https://community.intel.com/t5/Intel-Software-Guard-Extensions/Why-SGX-multi-threading-stop-gaining-after-16-threads/m-p/1568737#M6105 <P>Hi,<BR />Are you using Intel SGX SDK to develop your application?<BR /><BR />Regards,<BR />Wojtek</P> Fri, 02 Feb 2024 14:23:26 GMT https://community.intel.com/t5/Intel-Software-Guard-Extensions/Why-SGX-multi-threading-stop-gaining-after-16-threads/m-p/1568737#M6105 Wojciech_M_Intel 2024-02-02T14:23:26Z