<p class="MsoNormal"><span class="Apple-style-span" style="font-family: arial, helvetica, sans-serif;">We have one query on vbuf_lock in mvapich2 </span></p>
<p class="MsoNormal"><font size="2"><span style="font-size: 10pt; "><span class="Apple-style-span" style="font-family: arial, helvetica, sans-serif;">Here for uDAPL code (located
inside src/mpid/ch3/channels/mrail/src/udapl) do not maintain any protection
like “vbuf_lock” where as similar code for IB (located in
src/mpid/ch3/channels/mrail/src/gen2) we have used vbuf_lock
protection.</span></span></font></p>
<p class="MsoNormal"><font size="2"><span style="font-size: 10pt; "><span class="Apple-style-span" style="font-family: arial, helvetica, sans-serif;">Does any one know against what in
Gen2 we are trying to protect free_vbuf_head ? </span><span class="Apple-style-span" style="font-family: arial, helvetica, sans-serif;"></span></span></font></p>
<p class="MsoNormal"><font size="2"><span style="font-size: 10pt; "><span class="Apple-style-span" style="font-family: arial, helvetica, sans-serif;">Why do not we need such protection
in udapl code?</span><span class="Apple-style-span" style="font-family: arial, helvetica, sans-serif;"></span></span></font></p><p class="MsoNormal"><span class="Apple-style-span" style="font-family: arial, helvetica, sans-serif;">Thanks,</span></p>
<p class="MsoNormal"><span class="Apple-style-span" style="font-family: arial, helvetica, sans-serif;">Polk</span></p>