<html><head><meta http-equiv="content-type" content="text/html; charset=utf-8"></head><body style="overflow-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;">Thanks.<br id="lineBreakAtBeginningOfMessage"><div><br><blockquote type="cite"><div>On Sep 24, 2024, at 1:03 AM, Simon Rit <simon.rit@creatis.insa-lyon.fr> wrote:</div><br class="Apple-interchange-newline"><div><meta http-equiv="Content-Type" content="text/html; charset=utf-8"><div dir="ltr"><div>Hi,</div><div>I think there is still a memory bug that has not been fixed but not released yet see <a href="https://urldefense.us/v2/url?u=https-3A__github.com_RTKConsortium_RTK_issues_612&d=DwMFaQ&c=v4IIwRuZAmwupIjowmMWUmLasxPEgYsgNI-O7C4ViYc&r=J7uT21mkGp7aMwIrHQkTLGwy72wKx_bOB0IkoGp__bQ&m=ICcGM5WJ6bKBe9ILgWociSYXBip6q9mcBsslpccWs-f_tamP8sx2yeDsuRYdL8wG&s=pEgV6drYMSYi1HmTbLLsb7Lq8se32VmWcnnoJGVRFzo&e=">here</a>.</div><div>Iterative reconstruction techniques currently load the whole volume and projections in memory so the limit is how much you can fit in GPU memory + intermediate volumes.</div><div>Simon<br></div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Mon, Sep 23, 2024 at 9:53 PM Rahman, Obaid <<a href="mailto:rahmano@ornl.gov">rahmano@ornl.gov</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div>Hi Simon,<div><br></div><div>I have installed the latest openRTK, and the problem has been resolved.</div><div>I can reconstruct volumes of 1200X1200X1200 which is more than 2^31-1.</div><div><br></div><div>Do you know what is the max recon size I can get?</div><div>Thanks.</div><div><br></div><div>Best,</div><div>Obaid<br id="m_485987214865649809lineBreakAtBeginningOfMessage"><div><br><blockquote type="cite"><div>On Apr 29, 2024, at 1:50 PM, Rahman, Obaid <<a href="mailto:rahmano@ornl.gov" target="_blank">rahmano@ornl.gov</a>> wrote:</div><br><div><div>Hi Simon,<div><br></div><div>Thank you again for the prompt reply and for catching the issue.<div>I have opened a <a href="https://urldefense.us/v2/url?u=https-3A__github.com_RTKConsortium_RTK_issues_594&d=DwMFaQ&c=v4IIwRuZAmwupIjowmMWUmLasxPEgYsgNI-O7C4ViYc&r=J7uT21mkGp7aMwIrHQkTLGwy72wKx_bOB0IkoGp__bQ&m=ICcGM5WJ6bKBe9ILgWociSYXBip6q9mcBsslpccWs-f_tamP8sx2yeDsuRYdL8wG&s=VtfdNavyCjBJDPt8GNpEUW-uu6blyoaFNyGi8zlBMxA&e=" target="_blank">new issue</a> on Github.</div><div>Thanks!</div><div><br></div><div>Best,</div><div>Obaid<br id="m_485987214865649809lineBreakAtBeginningOfMessage"><div><br><blockquote type="cite"><div>On Apr 29, 2024, at 11:40 AM, Simon Rit <<a href="mailto:simon.rit@creatis.insa-lyon.fr" target="_blank">simon.rit@creatis.insa-lyon.fr</a>> wrote:</div><br><div><div dir="ltr"><div dir="ltr">Thanks. I think I understood the issue. Your code indicates this line for the initial error:</div><div dir="ltr"><a href="https://urldefense.us/v2/url?u=https-3A__github.com_SimonRit_RTK_blob_86d1e83d5341a6a7a85400d550d4759b46653522_src_rtkCudaUtilities.cu-23L115&d=DwMFaQ&c=v4IIwRuZAmwupIjowmMWUmLasxPEgYsgNI-O7C4ViYc&r=J7uT21mkGp7aMwIrHQkTLGwy72wKx_bOB0IkoGp__bQ&m=dX-bgc0aI76oeRMh3MT7_0hyVzTmxOdz7j3ilY3C85ebAPukM8PNxaaKOMC36gHw&s=lQAUBe9IGLcHtcPqqiWGjq1BYkPWmQBQsyqrbZGZssA&e=" target="_blank">https://github.com/SimonRit/RTK/blob/86d1e83d5341a6a7a85400d550d4759b46653522/src/rtkCudaUtilities.cu#L115</a></div><div>The numel variable two lines above is computed as an int, which max value (2^31-1=<span id="m_485987214865649809gmail-cwos">2147483647) is below </span>1264*1356*1356=<span id="m_485987214865649809gmail-cwos">2324162304. Larger GPU memory comes with new bugs! Can you report your issue on github and I'll fix this quickly?</span></div><div><span id="m_485987214865649809gmail-cwos">Thanks in advance,<br></span></div><div><span id="m_485987214865649809gmail-cwos">Simon<br></span></div></div>
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