[Insight-developers] Threading: Good News/Bad News
Miller, James V (CRD)
millerjv@crd.ge.com
Thu, 29 Nov 2001 10:02:48 -0500
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Adding the _PTHREADS symbol seems to have the problems we were having with pthreads and STL
containers.
The bad news is that on the SGI you can only use "both" -LANG:std and _PTHREADS if you do not intend
to use any iostreams.
With -LANG:std, you can use STL with the new iostreams. But STL containers are not thread safe.
With _PTHREADS, you can use STL with the OLD iostreams and the STL containers are thread safe.
'Course the old iostreams are not thread safe.
I have only found one discussion on the net identifies this problem. They mention this is discussed
on SGI developers sites. I am trying to track down our developer ID so I can did around. If anyone
else has access to SGI developers site, could you look for a solution for using -LAND:std and
_PTHREADS.
Jim Miller
_____________________________________
Visualization & Computer Vision
GE Corporate Research & Development
Bldg. KW, Room C218B
P.O. Box 8, Schenectady NY 12301
millerjv@crd.ge.com < mailto:millerjv@crd.ge.com <mailto:millerjv@crd.ge.com> >
(518) 387-4005, Dial Comm: 8*833-4005,
Cell: (518) 505-7065, Fax: (518) 387-6981
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<DIV><SPAN class=756135414-29112001><FONT size=2>Adding the _PTHREADS symbol
seems to have the problems we were having with pthreads and STL
containers.</FONT></SPAN></DIV>
<DIV><SPAN class=756135414-29112001><FONT size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=756135414-29112001><FONT size=2>The bad news is that on the SGI
you can only use "both" -LANG:std and _PTHREADS if you do not intend to use
any iostreams.</FONT></SPAN></DIV>
<DIV><SPAN class=756135414-29112001><FONT size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=756135414-29112001><FONT size=2>With -LANG:std, you can use STL
with the new iostreams. But STL containers are not thread
safe.</FONT></SPAN></DIV>
<DIV><SPAN class=756135414-29112001><FONT size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=756135414-29112001><FONT size=2>With _PTHREADS, you can use STL
with the OLD iostreams and the STL containers are thread safe. 'Course the
old iostreams are not thread safe.</FONT></SPAN></DIV>
<DIV><SPAN class=756135414-29112001><FONT size=2></FONT></SPAN> </DIV>
<DIV><SPAN class=756135414-29112001><FONT size=2>I have only found one
discussion on the net identifies this problem. They mention this is
discussed on SGI developers sites. I am trying to track down our developer
ID so I can did around. If anyone else has access to SGI developers site,
could you look for a solution for using -LAND:std and
_PTHREADS.</FONT></SPAN></DIV><BR>
<P><B><FONT face="Comic Sans MS" color=#000080>Jim Miller</FONT></B>
<BR><B><I><FONT face=Arial color=#ff0000
size=2>_____________________________________</FONT></I></B><I></I><BR><I></I><I><FONT
face=Arial color=#000000 size=1>Visualization & Computer Vision<BR>GE
Corporate Research & Development<BR>Bldg. KW, Room C218B<BR>P.O. Box 8,
Schenectady NY 12301<BR><BR></FONT><U><FONT face=Arial color=#0000ff
size=1>millerjv@crd.ge.com <<A
href="mailto:millerjv@crd.ge.com">mailto:millerjv@crd.ge.com</A>></FONT></U></I><BR><I><FONT
face=Arial color=#000000 size=1>(518) 387-4005, Dial Comm: 8*833-4005,
</FONT></I><BR><I><FONT face=Arial color=#000000 size=1>Cell: (518) 505-7065,
Fax: (518) 387-6981</FONT></I> </P><BR>
<DIV> </DIV></BODY></HTML>
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