summaryrefslogtreecommitdiff
path: root/examples
diff options
context:
space:
mode:
authorGuruprasad Mukundarao <guruprasadx.rao@intel.com>2016-06-10 16:55:05 +0100
committerThomas Monjalon <thomas.monjalon@6wind.com>2016-06-14 21:21:59 +0200
commitfa667b46f555f853f97e8d844a86c08d557278d0 (patch)
tree00445e49d25fa239bd377be78f8d51a0b102f27c /examples
parent5f0c5de435b391eaf7a5c362213e91f2c795c4a2 (diff)
downloaddpdk-fa667b46f555f853f97e8d844a86c08d557278d0.zip
dpdk-fa667b46f555f853f97e8d844a86c08d557278d0.tar.gz
dpdk-fa667b46f555f853f97e8d844a86c08d557278d0.tar.xz
examples/ip_pipeline: add core mappings script
This script parses the application configuration file and detects all the pipelines specified therein, and then, it generates all the possible mappings of those pipelines on the specified CPU core-list. As a result, each of the possible pipeline-to-core mappings is saved as separate output configuration file. For example- if input file is edge_router_downstream.cfg with 3 pipeline (excluding pipeline 0) and core-list is “1, 2”, following combinations will be generated- Pipeline 1 Pipeline 2 Pipeline 3 Core = 1 Core = 1 Core = 2 Core = 1 Core = 2 Core = 1 Core = 2 Core = 1 Core = 1 Core = 2 Core = 2 Core = 1 Core = 2 Core = 1 Core = 2 Core = 1 Core = 2 Core = 2 Core = C1 Core = C1H Core = C2 Core = C1 Core = C2 Core = C1H Core = C2 Core = C1 Core = C1H This script will help users to analyse the performance of application by evaluating all the generated configuration files with different pipelines-to-core mappings and obtaining the application configuration file with best performance. To run the script, issue the following command; ./pipeline-to-core-mapping.py -i <input_configuration_file> -pc "s<socket-id>c<core-id>" Some optional arguments are as follows: -h, --help show this help message and exit -ht {ON,OFF}, --hyper-thread {ON,OFF} enable/disable hyper threading. default is ON -nO, --no-output-file disable output config file generation. Output file generation is enabled by default Signed-off-by: Guruprasad Mukundarao <guruprasadx.rao@intel.com> Acked-by: Cristian Dumitrescu <cristian.dumitrescu@intel.com>
Diffstat (limited to 'examples')
-rwxr-xr-xexamples/ip_pipeline/config/pipeline-to-core-mapping.py936
1 files changed, 936 insertions, 0 deletions
diff --git a/examples/ip_pipeline/config/pipeline-to-core-mapping.py b/examples/ip_pipeline/config/pipeline-to-core-mapping.py
new file mode 100755
index 0000000..37b131c
--- /dev/null
+++ b/examples/ip_pipeline/config/pipeline-to-core-mapping.py
@@ -0,0 +1,936 @@
+#! /usr/bin/python2
+
+# 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)