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<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Hi,<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>I am rendering a number of images on a machine with multiple
processors. <o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>I’m using rpiece with the –PP option (splitting into
4 pieces with the hope of running one on each or the 4 processors in my machine),
but still only ever seem to be using 1 processor at a time.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>I get multiple rpict threads, but only one of them seems to
do anything at any one time.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Does anyone know where I’m going wrong, or even if it’s
possible to use multiple cpus in the same machine at once?<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Many thanks,<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'>Glen Harding.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 face=Arial><span style='font-size:10.0pt;
font-family:Arial'><o:p> </o:p></span></font></p>
<p class=MsoPlainText style='margin:0cm;margin-bottom:.0001pt'><font size=2
color="#999999" face=Arial><span style='font-size:10.0pt;font-family:Arial;
color:#999999'>Glen Harding<o:p></o:p></span></font></p>
<p class=MsoPlainText style='margin:0cm;margin-bottom:.0001pt'><st1:place
w:st="on"><st1:PlaceName w:st="on"><font size=2 color="#999999" face=Arial><span
style='font-size:10.0pt;font-family:Arial;color:#999999'>Bradford</span></font></st1:PlaceName><font
size=2 color="#999999" face=Arial><span style='font-size:10.0pt;font-family:
Arial;color:#999999'> <st1:PlaceType w:st="on">School</st1:PlaceType></span></font></st1:place><font
size=2 color="#999999" face=Arial><span style='font-size:10.0pt;font-family:
Arial;color:#999999'> of Optometry and Vision Sciences</span></font><font
size=2 color=gray face=Arial><span style='font-size:10.0pt;font-family:Arial;
color:gray'><o:p></o:p></span></font></p>
<p class=MsoPlainText style='margin:0cm;margin-bottom:.0001pt'><font size=2
face=Arial><span style='font-size:10.0pt;font-family:Arial'><ns0:place
w:insAuthor="Authorised User" w:insDate="2009-03-23T15:52:00Z"
w:endInsAuthor="Authorised User" w:endInsDate="2009-03-23T15:52:00Z"><ns0:PlaceType
w:insAuthor="Authorised User" w:insDate="2009-03-23T15:52:00Z"
w:endInsAuthor="Authorised User" w:endInsDate="2009-03-23T15:52:00Z"><st1:place
w:st="on"><st1:PlaceType w:st="on"><font color="#999999"><span
style='color:#999999'>University</span></font></st1:PlaceType></ns0:PlaceType></st1:place><font
color="#999999"><span style='color:#999999'> of </span></font><ns0:PlaceName
w:insAuthor="Authorised User" w:insDate="2009-03-23T15:52:00Z"
w:endInsAuthor="Authorised User" w:endInsDate="2009-03-23T15:52:00Z"><st1:PlaceName
w:st="on"><font color="#999999"><span style='color:#999999'>Bradford</span></font></st1:PlaceName></ns0:PlaceName></ns0:place><font
color="#999999"><span style='color:#999999'> <o:p></o:p></span></font></span></font></p>
<p class=MsoPlainText style='margin:0cm;margin-bottom:.0001pt'><font size=2
face=Arial><span style='font-size:10.0pt;font-family:Arial'><ns0:place
w:insAuthor="Authorised User" w:insDate="2009-03-23T15:52:00Z"
w:endInsAuthor="Authorised User" w:endInsDate="2009-03-23T15:52:00Z"><ns0:PostalCode
w:insAuthor="Authorised User" w:insDate="2009-03-23T15:52:00Z"
w:endInsAuthor="Authorised User" w:endInsDate="2009-03-23T15:52:00Z"><font
color="#999999"><span style='color:#999999'>BD7 1DP</span></font></ns0:PostalCode></ns0:place><font
color=gray><span style='color:gray'><o:p></o:p></span></font></span></font></p>
<p class=MsoNormal><font size=2 color="#999999" face=Arial><span
style='font-size:10.0pt;font-family:Arial;color:#999999'>Tel: 07969 797391</span></font><font
color="#999999"><span style='color:#999999'> </span></font><o:p></o:p></p>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><o:p> </o:p></span></font></p>
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