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<div data-externalstyle="false" dir="ltr" style="font-family: 'Microsoft YaHei UI', 'Calibri', 'Segoe UI', 'Meiryo', 'Microsoft JhengHei UI', 'Malgun Gothic', 'sans-serif';font-size:12pt;"><div><pre style='font: 14px/19.6px courier, "courier new", monospace; margin: 0px; color: rgb(0, 0, 0); text-transform: none; text-indent: 0px; letter-spacing: normal; word-spacing: 0px; white-space: pre-wrap; -ms-word-wrap: break-word; widows: 1; background-color: rgb(255, 255, 255); -webkit-text-stroke-width: 0px;'>I am curious about the mixed-precision capabilities in KSP. </pre><pre style='font: 14px/19.6px courier, "courier new", monospace; margin: 0px; color: rgb(0, 0, 0); text-transform: none; text-indent: 0px; letter-spacing: normal; word-spacing: 0px; white-space: pre-wrap; -ms-word-wrap: break-word; widows: 1; background-color: rgb(255, 255, 255); -webkit-text-stroke-width: 0px;'><h3 style="color: rgb(0, 0, 0); text-transform: none; line-height: normal; text-indent: 0px; letter-spacing: normal; font-family: Simsun; font-style: normal; font-variant: normal; word-spacing: 0px; white-space: normal; widows: 1; background-color: rgb(213, 234, 255); -webkit-text-stroke-width: 0px;">What’s the effects with the option --with-mix-precision=1 when running ./configure?</h3><div style="color: rgb(0, 0, 0); text-transform: none; line-height: normal; text-indent: 0px; letter-spacing: normal; font-family: Simsun; font-style: normal; font-variant: normal; word-spacing: 0px; white-space: normal; widows: 1; background-color: rgb(213, 234, 255); -webkit-text-stroke-width: 0px;">Does it like this? The mix-precision CG solve, as an example, is that using single precision for some earlier iterations for accelerating, and using double precision for the rest iterations to keep high precision results.</div><div style="color: rgb(0, 0, 0); text-transform: none; line-height: normal; text-indent: 0px; letter-spacing: normal; font-family: Simsun; font-style: normal; font-variant: normal; word-spacing: 0px; white-space: normal; widows: 1; background-color: rgb(213, 234, 255); -webkit-text-stroke-width: 0px;"><font face="Courier New" style="background-color: rgb(255, 255, 255);"></font><br></div><div style="color: rgb(0, 0, 0); text-transform: none; line-height: normal; text-indent: 0px; letter-spacing: normal; font-family: Simsun; font-style: normal; font-variant: normal; word-spacing: 0px; white-space: normal; widows: 1; background-color: rgb(213, 234, 255); -webkit-text-stroke-width: 0px;"><font face="Courier New Regular" style="background-color: rgb(255, 255, 255);">Is there any other information about mix-precision methods, or for re-development if needed?</font></div><div style="color: rgb(0, 0, 0); text-transform: none; line-height: normal; text-indent: 0px; letter-spacing: normal; font-family: Simsun; font-style: normal; font-variant: normal; word-spacing: 0px; white-space: normal; widows: 1; background-color: rgb(213, 234, 255); -webkit-text-stroke-width: 0px;"><font face="Times New Roman" style="background-color: rgb(255, 255, 255);"></font><br></div><div style="color: rgb(0, 0, 0); text-transform: none; line-height: normal; text-indent: 0px; letter-spacing: normal; font-family: Simsun; font-style: normal; font-variant: normal; word-spacing: 0px; white-space: normal; widows: 1; background-color: rgb(213, 234, 255); -webkit-text-stroke-width: 0px;"><font face="Times New Roman Regular" style="background-color: rgb(255, 255, 255);">Thanks,</font></div><div style="color: rgb(0, 0, 0); text-transform: none; line-height: normal; text-indent: 0px; letter-spacing: normal; font-family: Simsun; font-style: normal; font-variant: normal; word-spacing: 0px; white-space: normal; widows: 1; background-color: rgb(213, 234, 255); -webkit-text-stroke-width: 0px;"><font face="Times New Roman" style="background-color: rgb(255, 255, 255);">Li Runhua</font></div></pre></div><div><br></div></div>
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