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get_gtid docstring

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Steven Robertson 2010-09-01 23:38:29 -04:00
parent 4a80d946db
commit 0a3f9551ad
1 changed files with 6 additions and 1 deletions
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7
cuburnlib/ptx.py
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@ -35,7 +35,7 @@ from collections import namedtuple
#
# The scope of the class instance is unrelated to the normal scope of names in
# Python. In fact, a function call frequently declares a register that may be
# needed by the parent function. So where to store the information regarding
# later siblings in the call stack. So where to store the information regarding
# the register that was declared at the top of the file (name, type, etc)?
# Well, once declared, a variable remains in scope in PTX until the closing
# brace of the block (curly-braces segment) it was declared in. The natural
@ -609,6 +609,11 @@ class _PTXStdLib(PTXFragment):
@ptx_func
def _get_gtid(self, dst):
"""
Get the global thread ID (the position of this thread in a grid of
blocks of threads). Notably, this assumes that both grid and block are
one-dimensional, which in most cases is true.
"""
with block("Load GTID into %s" % str(dst)):
reg.u16('tmp')
reg.u32('cta ncta tid gtid')