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</o:shapelayout></xml><![endif]--></head><body lang=EN-US link=blue vlink=purple><div class=WordSection1><p class=MsoNormal>Hello!<o:p></o:p></p><p class=MsoNormal>I have a question about the roadmap of GROMACS and OpenMM, because there is this OpenMM project coming up, and GROMACS is (or has been) somehow connected to this as well (if I understood correctly), and I became confused. Could you confirm me, if I understood the future of GROMACS correctly, as I try to summarize it below in my simple words? I just want to get the confusion about the GROMACS and OpenMM “mixture” out of my head:<o:p></o:p></p><p class=MsoNormal> <o:p></o:p></p><p class=MsoNormal>The OpenMM project builds up another MD package, and besides having their own Force Field AMOEBA created, they especially want to design their product in a clean layered hierarchy for making i.e. hardware abstractions easily available; concerning the programming close to the hardware, they seem to early be the experts for getting an Integrator programmed especially well for the modern GPU computing; but not designing their own Integrator completely from scratch, they started to use already available Integrators (i.e. the GROMACS one) and just modify certain parts of that code to get it GPU ready, announcing it then as something called the OpenMM-Gromacs; GROMACS itself welcomed this for efficiently and quickly getting its way into the beneficial GPU programming, and in the beginning (version 4.5) can also work with this OpenMM-Gromacs code; GROMACS continues to work on its independent product with its own GPU code (version 4.6, still under construction); OpenMM and GROMACS thus worked in a typical win-win situation (collaboration) in the early days of GPU – MD computing, but will finally diverge again; <o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>As I was wondering: Did I get this correctly?<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Thanks, and best greetings from the EM-Labs of CIC biomaGUNE (SPAIN),<o:p></o:p></p><p class=MsoNormal><span lang=ES>Marco Möller<o:p></o:p></span></p><p class=MsoNormal><span lang=ES-TRAD style='font-size:8.0pt'><o:p> </o:p></span></p><p class=MsoNormal><span lang=ES-TRAD style='font-size:8.0pt'><o:p> </o:p></span></p><p class=MsoNormal><span lang=ES-TRAD style='font-size:8.0pt'><o:p> </o:p></span></p><p class=MsoNormal><span lang=ES-TRAD style='font-size:8.0pt'>----------------------------------------------------------------<o:p></o:p></span></p><p class=MsoNormal><span lang=ES-TRAD style='font-size:8.0pt'>Marco Möller<o:p></o:p></span></p><p class=MsoNormal><span lang=ES style='font-size:8.0pt'>Platform Manager - Electron Microscopy<o:p></o:p></span></p><p class=MsoNormal><span lang=ES style='font-size:4.0pt'><o:p> </o:p></span></p><p class=MsoNormal><b><span lang=ES style='font-size:8.0pt'>CIC biomaGUNE<o:p></o:p></span></b></p><p class=MsoNormal><span lang=ES-TRAD style='font-size:8.0pt'>Parque Tecnológico de San Sebastián<o:p></o:p></span></p><p class=MsoNormal><span lang=ES-TRAD style='font-size:8.0pt'>Paseo Miramón, 182. Ed. Empresarial C<o:p></o:p></span></p><p class=MsoNormal><span lang=ES style='font-size:8.0pt'>20009 San Sebastián (Guipúzcoa)</span><span lang=ES style='font-size:8.0pt'><o:p></o:p></span></p><p class=MsoNormal><span lang=ES-TRAD style='font-size:8.0pt'>SPAIN<o:p></o:p></span></p><p class=MsoNormal><span lang=ES-TRAD style='font-size:8.0pt'><o:p> </o:p></span></p><p class=MsoNormal><span style='font-size:8.0pt'>Tel: +34 943 00 53 25<o:p></o:p></span></p><p class=MsoNormal><a href="mailto:mmoller@cicbiomagune.es"><span style='font-size:8.0pt;color:blue'>mmoller@cicbiomagune.es</span></a><span style='font-size:8.0pt'><o:p></o:p></span></p><p class=MsoNormal><o:p> </o:p></p></div><!--[object_id=#cicbiomagune.es#]--><P align=center><FONT size=2><FONT color=#0000ff><FONT face=Arial><SPAN style="FONT-FAMILY: Barmeno; COLOR: teal; FONT-SIZE: 7.5pt; mso-fareast-font-family: 'Times New Roman'; mso-bidi-font-family: Tahoma; mso-ansi-language: EN-GB" lang=EN-GB>This e-mail is from CIC </SPAN><SPAN style="FONT-FAMILY: Barmeno; COLOR: teal; FONT-SIZE: 7.5pt; mso-fareast-font-family: 'Times New Roman'; mso-bidi-font-family: Tahoma; mso-ansi-language: EN-GB; mso-bidi-font-size: 11.0pt" lang=EN-GB>biomaGUNE</SPAN><SPAN style="FONT-FAMILY: Barmeno; COLOR: teal; FONT-SIZE: 7.5pt; mso-fareast-font-family: 'Times New Roman'; mso-bidi-font-family: Tahoma; mso-ansi-language: EN-GB" lang=EN-GB>. 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