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f-stack/dpdk/examples/ip_pipeline/config/pipeline-to-core-mapping.py

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init
2017-04-21 10:43:26 +00:00
#!/usr/bin/env python
# BSD LICENSE
#
# Copyright(c) 2016 Intel Corporation. All rights reserved.
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
#
# * Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# * Redistributions in binary form must reproduce the above copyright
# notice, this list of conditions and the following disclaimer in
# the documentation and/or other materials provided with the
# distribution.
# * Neither the name of Intel Corporation nor the names of its
# contributors may be used to endorse or promote products derived
# from this software without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
#
# This script maps the set of pipelines identified (MASTER pipelines are
# ignored) from the input configuration file to the set of cores
# provided as input argument and creates configuration files for each of
# the mapping combinations.
#
from __future__ import print_function
import sys
import errno
import os
import re
import array
import itertools
import re
import argparse
from collections import namedtuple
# default values
enable_stage0_traceout = 1
enable_stage1_traceout = 1
enable_stage2_traceout = 1
enable_stage1_fileout = 1
enable_stage2_fileout = 1
Constants = namedtuple('Constants', ['MAX_CORES', 'MAX_PIPELINES'])
constants = Constants(16, 64)
# pattern for physical core
pattern_phycore = '^(s|S)\d(c|C)[1-9][0-9]*$'
reg_phycore = re.compile(pattern_phycore)
def popcount(mask):
return bin(mask).count("1")
def len2mask(length):
if (length == 0):
return 0
if (length > 64):
sys.exit('error: len2mask - length %i > 64. exiting' % length)
return int('1' * length, 2)
def bitstring_write(n, n_bits):
tmpstr = ""
if (n_bits > 64):
return
i = n_bits - 1
while (i >= 0):
cond = (n & (1 << i))
if (cond):
print('1', end='')
tmpstr += '1'
else:
print('0', end='')
tmpstr += '0'
i -= 1
return tmpstr
class Cores0:
def __init__(self):
self.n_pipelines = 0
class Cores1:
def __init__(self):
self.pipelines = 0
self.n_pipelines = 0
class Cores2:
def __init__(self):
self.pipelines = 0
self.n_pipelines = 0
self.counter = 0
self.counter_max = 0
self.bitpos = array.array(
"L", itertools.repeat(0, constants.MAX_PIPELINES))
class Context0:
def __init__(self):
self.cores = [Cores0() for i in range(0, constants.MAX_CORES)]
self.n_cores = 0
self.n_pipelines = 0
self.n_pipelines0 = 0
self.pos = 0
self.file_comment = ""
self.ctx1 = None
self.ctx2 = None
def stage0_print(self):
print('printing Context0 obj')
print('c0.cores(n_pipelines) = [ ', end='')
for cores_count in range(0, constants.MAX_CORES):
print(self.cores[cores_count].n_pipelines, end=' ')
print(']')
print('c0.n_cores = %d' % self.n_cores)
print('c0.n_pipelines = %d' % self.n_pipelines)
print('c0.n_pipelines0 = %d' % self.n_pipelines0)
print('c0.pos = %d' % self.pos)
print('c0.file_comment = %s' % self.file_comment)
if (self.ctx1 is not None):
print('c0.ctx1 = ', end='')
print(repr(self.ctx1))
else:
print('c0.ctx1 = None')
if (self.ctx2 is not None):
print('c0.ctx2 = ', end='')
print(repr(self.ctx2))
else:
print('c0.ctx2 = None')
def stage0_init(self, num_cores, num_pipelines, ctx1, ctx2):
self.n_cores = num_cores
self.n_pipelines = num_pipelines
self.ctx1 = ctx1
self.ctx2 = ctx2
def stage0_process(self):
# stage0 init
self.cores[0].n_pipelines = self.n_pipelines
self.n_pipelines0 = 0
self.pos = 1
while True:
# go forward
while True:
if ((self.pos < self.n_cores) and (self.n_pipelines0 > 0)):
self.cores[self.pos].n_pipelines = min(
self.cores[self.pos - 1].n_pipelines,
self.n_pipelines0)
self.n_pipelines0 -= self.cores[self.pos].n_pipelines
self.pos += 1
else:
break
# check solution
if (self.n_pipelines0 == 0):
self.stage0_log()
self.ctx1.stage1_init(self, self.ctx2) # self is object c0
self.ctx1.stage1_process()
# go backward
while True:
if (self.pos == 0):
return
self.pos -= 1
if ((self.cores[self.pos].n_pipelines > 1) and
(self.pos != (self.n_cores - 1))):
break
self.n_pipelines0 += self.cores[self.pos].n_pipelines
self.cores[self.pos].n_pipelines = 0
# rearm
self.cores[self.pos].n_pipelines -= 1
self.n_pipelines0 += 1
self.pos += 1
def stage0_log(self):
tmp_file_comment = ""
if(enable_stage0_traceout != 1):
return
print('STAGE0: ', end='')
tmp_file_comment += 'STAGE0: '
for cores_count in range(0, self.n_cores):
print('C%d = %d\t'
% (cores_count,
self.cores[cores_count].n_pipelines), end='')
tmp_file_comment += "C{} = {}\t".format(
cores_count, self.cores[cores_count].n_pipelines)
# end for
print('')
self.ctx1.stage0_file_comment = tmp_file_comment
self.ctx2.stage0_file_comment = tmp_file_comment
class Context1:
_fileTrace = None
def __init__(self):
self.cores = [Cores1() for i in range(constants.MAX_CORES)]
self.n_cores = 0
self.n_pipelines = 0
self.pos = 0
self.stage0_file_comment = ""
self.stage1_file_comment = ""
self.ctx2 = None
self.arr_pipelines2cores = []
def stage1_reset(self):
for i in range(constants.MAX_CORES):
self.cores[i].pipelines = 0
self.cores[i].n_pipelines = 0
self.n_cores = 0
self.n_pipelines = 0
self.pos = 0
self.ctx2 = None
# clear list
del self.arr_pipelines2cores[:]
def stage1_print(self):
print('printing Context1 obj')
print('ctx1.cores(pipelines,n_pipelines) = [ ', end='')
for cores_count in range(0, constants.MAX_CORES):
print('(%d,%d)' % (self.cores[cores_count].pipelines,
self.cores[cores_count].n_pipelines), end=' ')
print(']')
print('ctx1.n_cores = %d' % self.n_cores)
print('ctx1.n_pipelines = %d' % self.n_pipelines)
print('ctx1.pos = %d' % self.pos)
print('ctx1.stage0_file_comment = %s' % self.stage0_file_comment)
print('ctx1.stage1_file_comment = %s' % self.stage1_file_comment)
if (self.ctx2 is not None):
print('ctx1.ctx2 = ', end='')
print(self.ctx2)
else:
print('ctx1.ctx2 = None')
def stage1_init(self, c0, ctx2):
self.stage1_reset()
self.n_cores = 0
while (c0.cores[self.n_cores].n_pipelines > 0):
self.n_cores += 1
self.n_pipelines = c0.n_pipelines
self.ctx2 = ctx2
self.arr_pipelines2cores = [0] * self.n_pipelines
i = 0
while (i < self.n_cores):
self.cores[i].n_pipelines = c0.cores[i].n_pipelines
i += 1
def stage1_process(self):
pipelines_max = len2mask(self.n_pipelines)
while True:
pos = 0
overlap = 0
if (self.cores[self.pos].pipelines == pipelines_max):
if (self.pos == 0):
return
self.cores[self.pos].pipelines = 0
self.pos -= 1
continue
self.cores[self.pos].pipelines += 1
if (popcount(self.cores[self.pos].pipelines) !=
self.cores[self.pos].n_pipelines):
continue
overlap = 0
pos = 0
while (pos < self.pos):
if ((self.cores[self.pos].pipelines) &
(self.cores[pos].pipelines)):
overlap = 1
break
pos += 1
if (overlap):
continue
if ((self.pos > 0) and
((self.cores[self.pos].n_pipelines) ==
(self.cores[self.pos - 1].n_pipelines)) and
((self.cores[self.pos].pipelines) <
(self.cores[self.pos - 1].pipelines))):
continue
if (self.pos == self.n_cores - 1):
self.stage1_log()
self.ctx2.stage2_init(self)
self.ctx2.stage2_process()
if (self.pos == 0):
return
self.cores[self.pos].pipelines = 0
self.pos -= 1
continue
self.pos += 1
def stage1_log(self):
tmp_file_comment = ""
if(enable_stage1_traceout == 1):
print('STAGE1: ', end='')
tmp_file_comment += 'STAGE1: '
i = 0
while (i < self.n_cores):
print('C%d = [' % i, end='')
tmp_file_comment += "C{} = [".format(i)
j = self.n_pipelines - 1
while (j >= 0):
cond = ((self.cores[i].pipelines) & (1 << j))
if (cond):
print('1', end='')
tmp_file_comment += '1'
else:
print('0', end='')
tmp_file_comment += '0'
j -= 1
print(']\t', end='')
tmp_file_comment += ']\t'
i += 1
print('\n', end='')
self.stage1_file_comment = tmp_file_comment
self.ctx2.stage1_file_comment = tmp_file_comment
# check if file traceing is enabled
if(enable_stage1_fileout != 1):
return
# spit out the combination to file
self.stage1_process_file()
def stage1_updateCoresInBuf(self, nPipeline, sCore):
rePipeline = self._fileTrace.arr_pipelines[nPipeline]
rePipeline = rePipeline.replace("[", "\[").replace("]", "\]")
reCore = 'core\s*=\s*((\d*)|(((s|S)\d)?(c|C)[1-9][0-9]*)).*\n'
sSubs = 'core = ' + sCore + '\n'
reg_pipeline = re.compile(rePipeline)
search_match = reg_pipeline.search(self._fileTrace.in_buf)
if(search_match):
pos = search_match.start()
substr1 = self._fileTrace.in_buf[:pos]
substr2 = self._fileTrace.in_buf[pos:]
substr2 = re.sub(reCore, sSubs, substr2, 1)
self._fileTrace.in_buf = substr1 + substr2
def stage1_process_file(self):
outFileName = os.path.join(self._fileTrace.out_path,
self._fileTrace.prefix_outfile)
outFileName += "_{}CoReS".format(self.n_cores)
i = 0 # represents core number
while (i < self.n_cores):
j = self.n_pipelines - 1
pipeline_idx = 0
while(j >= 0):
cond = ((self.cores[i].pipelines) & (1 << j))
if (cond):
# update the pipelines array to match the core
# only in case of cond match
self.arr_pipelines2cores[
pipeline_idx] = fileTrace.in_physical_cores[i]
j -= 1
pipeline_idx += 1
i += 1
# update the in_buf as per the arr_pipelines2cores
for pipeline_idx in range(len(self.arr_pipelines2cores)):
outFileName += "_{}".format(self.arr_pipelines2cores[pipeline_idx])
self.stage1_updateCoresInBuf(
pipeline_idx, self.arr_pipelines2cores[pipeline_idx])
# by now the in_buf is all set to be written to file
outFileName += self._fileTrace.suffix_outfile
outputFile = open(outFileName, "w")
# write out the comments
strTruncated = ("", "(Truncated)")[self._fileTrace.ncores_truncated]
outputFile.write(
"; =============== Pipeline-to-Core Mapping ================\n"
"; Generated from file {}\n"
"; Input pipelines = {}\n"
"; Input cores = {}\n"
"; N_PIPELINES = {} N_CORES = {} {} hyper_thread = {}\n"
.format(
self._fileTrace.in_file_namepath,
fileTrace.arr_pipelines,
fileTrace.in_physical_cores,
self._fileTrace.n_pipelines,
self._fileTrace.n_cores,
strTruncated,
self._fileTrace.hyper_thread))
outputFile.write(
"; {stg0cmt}\n"
"; {stg1cmt}\n"
"; ========================================================\n"
"; \n"
.format(
stg0cmt=self.stage0_file_comment,
stg1cmt=self.stage1_file_comment))
# write buffer contents
outputFile.write(self._fileTrace.in_buf)
outputFile.flush()
outputFile.close()
class Context2:
_fileTrace = None
def __init__(self):
self.cores = [Cores2() for i in range(constants.MAX_CORES)]
self.n_cores = 0
self.n_pipelines = 0
self.pos = 0
self.stage0_file_comment = ""
self.stage1_file_comment = ""
self.stage2_file_comment = ""
# each array entry is a pipeline mapped to core stored as string
# pipeline ranging from 1 to n, however stored in zero based array
self.arr2_pipelines2cores = []
def stage2_print(self):
print('printing Context2 obj')
print('ctx2.cores(pipelines, n_pipelines, counter, counter_max) =')
for cores_count in range(0, constants.MAX_CORES):
print('core[%d] = (%d,%d,%d,%d)' % (
cores_count,
self.cores[cores_count].pipelines,
self.cores[cores_count].n_pipelines,
self.cores[cores_count].counter,
self.cores[cores_count].counter_max))
print('ctx2.n_cores = %d' % self.n_cores, end='')
print('ctx2.n_pipelines = %d' % self.n_pipelines, end='')
print('ctx2.pos = %d' % self.pos)
print('ctx2.stage0_file_comment = %s' %
self.self.stage0_file_comment)
print('ctx2.stage1_file_comment = %s' %
self.self.stage1_file_comment)
print('ctx2.stage2_file_comment = %s' %
self.self.stage2_file_comment)
def stage2_reset(self):
for i in range(0, constants.MAX_CORES):
self.cores[i].pipelines = 0
self.cores[i].n_pipelines = 0
self.cores[i].counter = 0
self.cores[i].counter_max = 0
for idx in range(0, constants.MAX_PIPELINES):
self.cores[i].bitpos[idx] = 0
self.n_cores = 0
self.n_pipelines = 0
self.pos = 0
# clear list
del self.arr2_pipelines2cores[:]
def bitpos_load(self, coreidx):
i = j = 0
while (i < self.n_pipelines):
if ((self.cores[coreidx].pipelines) &
(1 << i)):
self.cores[coreidx].bitpos[j] = i
j += 1
i += 1
self.cores[coreidx].n_pipelines = j
def bitpos_apply(self, in_buf, pos, n_pos):
out = 0
for i in range(0, n_pos):
out |= (in_buf & (1 << i)) << (pos[i] - i)
return out
def stage2_init(self, ctx1):
self.stage2_reset()
self.n_cores = ctx1.n_cores
self.n_pipelines = ctx1.n_pipelines
self.arr2_pipelines2cores = [''] * self.n_pipelines
core_idx = 0
while (core_idx < self.n_cores):
self.cores[core_idx].pipelines = ctx1.cores[core_idx].pipelines
self.bitpos_load(core_idx)
core_idx += 1
def stage2_log(self):
tmp_file_comment = ""
if(enable_stage2_traceout == 1):
print('STAGE2: ', end='')
tmp_file_comment += 'STAGE2: '
for i in range(0, self.n_cores):
mask = len2mask(self.cores[i].n_pipelines)
pipelines_ht0 = self.bitpos_apply(
(~self.cores[i].counter) & mask,
self.cores[i].bitpos,
self.cores[i].n_pipelines)
pipelines_ht1 = self.bitpos_apply(
self.cores[i].counter,
self.cores[i].bitpos,
self.cores[i].n_pipelines)
print('C%dHT0 = [' % i, end='')
tmp_file_comment += "C{}HT0 = [".format(i)
tmp_file_comment += bitstring_write(
pipelines_ht0, self.n_pipelines)
print(']\tC%dHT1 = [' % i, end='')
tmp_file_comment += "]\tC{}HT1 = [".format(i)
tmp_file_comment += bitstring_write(
pipelines_ht1, self.n_pipelines)
print(']\t', end='')
tmp_file_comment += ']\t'
print('')
self.stage2_file_comment = tmp_file_comment
# check if file traceing is enabled
if(enable_stage2_fileout != 1):
return
# spit out the combination to file
self.stage2_process_file()
def stage2_updateCoresInBuf(self, nPipeline, sCore):
rePipeline = self._fileTrace.arr_pipelines[nPipeline]
rePipeline = rePipeline.replace("[", "\[").replace("]", "\]")
reCore = 'core\s*=\s*((\d*)|(((s|S)\d)?(c|C)[1-9][0-9]*)).*\n'
sSubs = 'core = ' + sCore + '\n'
reg_pipeline = re.compile(rePipeline)
search_match = reg_pipeline.search(self._fileTrace.in_buf)
if(search_match):
pos = search_match.start()
substr1 = self._fileTrace.in_buf[:pos]
substr2 = self._fileTrace.in_buf[pos:]
substr2 = re.sub(reCore, sSubs, substr2, 1)
self._fileTrace.in_buf = substr1 + substr2
def pipelines2cores(self, n, n_bits, nCore, bHT):
if (n_bits > 64):
return
i = n_bits - 1
pipeline_idx = 0
while (i >= 0):
cond = (n & (1 << i))
if (cond):
# update the pipelines array to match the core
# only in case of cond match
# PIPELINE0 and core 0 are reserved
if(bHT):
tmpCore = fileTrace.in_physical_cores[nCore] + 'h'
self.arr2_pipelines2cores[pipeline_idx] = tmpCore
else:
self.arr2_pipelines2cores[pipeline_idx] = \
fileTrace.in_physical_cores[nCore]
i -= 1
pipeline_idx += 1
def stage2_process_file(self):
outFileName = os.path.join(self._fileTrace.out_path,
self._fileTrace.prefix_outfile)
outFileName += "_{}CoReS".format(self.n_cores)
for i in range(0, self.n_cores):
mask = len2mask(self.cores[i].n_pipelines)
pipelines_ht0 = self.bitpos_apply((~self.cores[i].counter) & mask,
self.cores[i].bitpos,
self.cores[i].n_pipelines)
pipelines_ht1 = self.bitpos_apply(self.cores[i].counter,
self.cores[i].bitpos,
self.cores[i].n_pipelines)
# update pipelines to core mapping
self.pipelines2cores(pipelines_ht0, self.n_pipelines, i, False)
self.pipelines2cores(pipelines_ht1, self.n_pipelines, i, True)
# update the in_buf as per the arr_pipelines2cores
for pipeline_idx in range(len(self.arr2_pipelines2cores)):
outFileName += "_{}".format(
self.arr2_pipelines2cores[pipeline_idx])
self.stage2_updateCoresInBuf(
pipeline_idx, self.arr2_pipelines2cores[pipeline_idx])
# by now the in_buf is all set to be written to file
outFileName += self._fileTrace.suffix_outfile
outputFile = open(outFileName, "w")
# write the file comments
strTruncated = ("", "(Truncated)")[self._fileTrace.ncores_truncated]
outputFile.write(
"; =============== Pipeline-to-Core Mapping ================\n"
"; Generated from file {}\n"
"; Input pipelines = {}\n"
"; Input cores = {}\n"
"; N_PIPELINES = {} N_CORES = {} {} hyper_thread = {} \n"
.format(
self._fileTrace.in_file_namepath,
fileTrace.arr_pipelines,
fileTrace.in_physical_cores,
self._fileTrace.n_pipelines,
self._fileTrace.n_cores,
strTruncated,
self._fileTrace.hyper_thread))
outputFile.write(
"; {stg0cmt}\n"
"; {stg1cmt}\n"
"; {stg2cmt}\n"
"; ========================================================\n"
"; \n"
.format(
stg0cmt=self.stage0_file_comment,
stg1cmt=self.stage1_file_comment,
stg2cmt=self.stage2_file_comment))
# write the buffer contents
outputFile.write(self._fileTrace.in_buf)
outputFile.flush()
outputFile.close()
def stage2_process(self):
i = 0
while(i < self.n_cores):
self.cores[i].counter_max = len2mask(
self.cores[i].n_pipelines - 1)
i += 1
self.pos = self.n_cores - 1
while True:
if (self.pos == self.n_cores - 1):
self.stage2_log()
if (self.cores[self.pos].counter ==
self.cores[self.pos].counter_max):
if (self.pos == 0):
return
self.cores[self.pos].counter = 0
self.pos -= 1
continue
self.cores[self.pos].counter += 1
if(self.pos < self.n_cores - 1):
self.pos += 1
class FileTrace:
def __init__(self, filenamepath):
self.in_file_namepath = os.path.abspath(filenamepath)
self.in_filename = os.path.basename(self.in_file_namepath)
self.in_path = os.path.dirname(self.in_file_namepath)
filenamesplit = self.in_filename.split('.')
self.prefix_outfile = filenamesplit[0]
self.suffix_outfile = ".cfg"
# output folder: in the same folder as input file
# create new folder in the name of input file
self.out_path = os.path.join(
os.path.abspath(os.path.dirname(__file__)),
self.prefix_outfile)
try:
os.makedirs(self.out_path)
except OSError as excep:
if excep.errno == errno.EEXIST and os.path.isdir(self.out_path):
pass
else:
raise
self.in_buf = None
self.arr_pipelines = [] # holds the positions of search
self.max_cores = 15
self.max_pipelines = 15
self.in_physical_cores = None
self.hyper_thread = None
# save the num of pipelines determined from input file
self.n_pipelines = 0
# save the num of cores input (or the truncated value)
self.n_cores = 0
self.ncores_truncated = False
def print_TraceFile(self):
print("self.in_file_namepath = ", self.in_file_namepath)
print("self.in_filename = ", self.in_filename)
print("self.in_path = ", self.in_path)
print("self.out_path = ", self.out_path)
print("self.prefix_outfile = ", self.prefix_outfile)
print("self.suffix_outfile = ", self.suffix_outfile)
print("self.in_buf = ", self.in_buf)
print("self.arr_pipelines =", self.arr_pipelines)
print("self.in_physical_cores", self.in_physical_cores)
print("self.hyper_thread", self.hyper_thread)
def process(n_cores, n_pipelines, fileTrace):
'''process and map pipelines, cores.'''
if (n_cores == 0):
sys.exit('N_CORES is 0, exiting')
if (n_pipelines == 0):
sys.exit('N_PIPELINES is 0, exiting')
if (n_cores > n_pipelines):
print('\nToo many cores, truncating N_CORES to N_PIPELINES')
n_cores = n_pipelines
fileTrace.ncores_truncated = True
fileTrace.n_pipelines = n_pipelines
fileTrace.n_cores = n_cores
strTruncated = ("", "(Truncated)")[fileTrace.ncores_truncated]
print("N_PIPELINES = {}, N_CORES = {} {}"
.format(n_pipelines, n_cores, strTruncated))
print("---------------------------------------------------------------")
ctx0_inst = Context0()
ctx1_inst = Context1()
ctx2_inst = Context2()
# initialize the class variables
ctx1_inst._fileTrace = fileTrace
ctx2_inst._fileTrace = fileTrace
ctx0_inst.stage0_init(n_cores, n_pipelines, ctx1_inst, ctx2_inst)
ctx0_inst.stage0_process()
def validate_core(core):
match = reg_phycore.match(core)
if(match):
return True
else:
return False
def validate_phycores(phy_cores):
'''validate physical cores, check if unique.'''
# eat up whitespaces
phy_cores = phy_cores.strip().split(',')
# check if the core list is unique
if(len(phy_cores) != len(set(phy_cores))):
print('list of physical cores has duplicates')
return None
for core in phy_cores:
if not validate_core(core):
print('invalid physical core specified.')
return None
return phy_cores
def scanconfigfile(fileTrace):
'''scan input file for pipelines, validate then process.'''
# open file
filetoscan = open(fileTrace.in_file_namepath, 'r')
fileTrace.in_buf = filetoscan.read()
# reset iterator on open file
filetoscan.seek(0)
# scan input file for pipelines
# master pipelines to be ignored
pattern_pipeline = r'\[PIPELINE\d*\]'
pattern_mastertype = r'type\s*=\s*MASTER'
pending_pipeline = False
for line in filetoscan:
match_pipeline = re.search(pattern_pipeline, line)
match_type = re.search('type\s*=', line)
match_mastertype = re.search(pattern_mastertype, line)
if(match_pipeline):
sPipeline = line[match_pipeline.start():match_pipeline.end()]
pending_pipeline = True
elif(match_type):
# found a type definition...
if(match_mastertype is None):
# and this is not a master pipeline...
if(pending_pipeline):
# add it to the list of pipelines to be mapped
fileTrace.arr_pipelines.append(sPipeline)
pending_pipeline = False
else:
# and this is a master pipeline...
# ignore the current and move on to next
sPipeline = ""
pending_pipeline = False
filetoscan.close()
# validate if pipelines are unique
if(len(fileTrace.arr_pipelines) != len(set(fileTrace.arr_pipelines))):
sys.exit('Error: duplicate pipelines in input file')
num_pipelines = len(fileTrace.arr_pipelines)
num_cores = len(fileTrace.in_physical_cores)
print("-------------------Pipeline-to-core mapping--------------------")
print("Input pipelines = {}\nInput cores = {}"
.format(fileTrace.arr_pipelines, fileTrace.in_physical_cores))
# input configuration file validations goes here
if (num_cores > fileTrace.max_cores):
sys.exit('Error: number of cores specified > max_cores (%d)' %
fileTrace.max_cores)
if (num_pipelines > fileTrace.max_pipelines):
sys.exit('Error: number of pipelines in input \
cfg file > max_pipelines (%d)' % fileTrace.max_pipelines)
# call process to generate pipeline-to-core mapping, trace and log
process(num_cores, num_pipelines, fileTrace)
if __name__ == "__main__":
parser = argparse.ArgumentParser(description='mappipelines')
reqNamedGrp = parser.add_argument_group('required named args')
reqNamedGrp.add_argument(
'-i',
'--input-file',
type=argparse.FileType('r'),
help='Input config file',
required=True)
reqNamedGrp.add_argument(
'-pc',
'--physical-cores',
type=validate_phycores,
help='''Enter available CPU cores in
format:\"<core>,<core>,...\"
where each core format: \"s<SOCKETID>c<COREID>\"
where SOCKETID={0..9}, COREID={1-99}''',
required=True)
# add optional arguments
parser.add_argument(
'-ht',
'--hyper-thread',
help='enable/disable hyper threading. default is ON',
default='ON',
choices=['ON', 'OFF'])
parser.add_argument(
'-nO',
'--no-output-file',
help='''disable output config file generation.
Output file generation is enabled by default''',
action="store_true")
args = parser.parse_args()
if(args.physical_cores is None):
parser.error("invalid physical_cores specified")
# create object of FileTrace and initialise
fileTrace = FileTrace(args.input_file.name)
fileTrace.in_physical_cores = args.physical_cores
fileTrace.hyper_thread = args.hyper_thread
if(fileTrace.hyper_thread == 'OFF'):
print("!!!!disabling stage2 HT!!!!")
enable_stage2_traceout = 0
enable_stage2_fileout = 0
elif(fileTrace.hyper_thread == 'ON'):
print("!!!!HT enabled. disabling stage1 file generation.!!!!")
enable_stage1_fileout = 0
if(args.no_output_file is True):
print("!!!!disabling stage1 and stage2 fileout!!!!")
enable_stage1_fileout = 0
enable_stage2_fileout = 0
scanconfigfile(fileTrace)