[dpdk-dev] [PATCH] ip_pipeline: add scripts file for pipeline to core mappings
Jasvinder Singh
jasvinder.singh at intel.com
Fri May 6 20:32:40 CEST 2016
From: Guruprasad Mukundarao <guruprasadx.rao at intel.com>
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.
Signed-off-by: Guruprasad Mukundarao <guruprasadx.rao at intel.com>
---
.../ip_pipeline/config/pipeline-to-core-mapping.py | 990 +++++++++++++++++++++
1 file changed, 990 insertions(+)
create mode 100644 examples/ip_pipeline/config/pipeline-to-core-mapping.py
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 100644
index 0000000..6fdac91
--- /dev/null
+++ b/examples/ip_pipeline/config/pipeline-to-core-mapping.py
@@ -0,0 +1,990 @@
+#! /usr/bin/python3
+
+# BSD LICENSE
+#
+# Copyright(c) 2010-2016 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.
+#
+
+import sys
+import array
+import itertools
+import re
+import argparse
+import os
+from collections import namedtuple
+
+#default values
+enable_stage0_traceout = 1
+enable_stage1_traceout = 1
+enable_stage2_traceout = 1
+
+#enable_stage0_fileout = 0
+enable_stage1_fileout = 1
+enable_stage2_fileout = 1
+
+#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 - lenght %i > 64. exiting' %length)
+
+ return (0xFFFFFFFFFFFFFFFF >> (64 - length))
+
+#-----------------------------------------------------------------------------
+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
+ #end while
+ return tmpstr
+#end function
+
+#-------------------------------------------------------------------------
+Constants = namedtuple('Constants', ['MAX_CORES', 'MAX_PIPELINES'])
+constants = Constants(16, 64)
+
+
+#-------------------------------------------------------------------------
+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.c1 = None
+ self.c2 = 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.c1 is not None):
+ print('c0.c1 = ', end='')
+ print(repr(self.c1))
+ else:
+ print('c0.c1 = None')
+
+ if (self.c2 is not None):
+ print('c0.c2 = ', end='')
+ print(repr(self.c2))
+ else:
+ print('c0.c2 = None')
+
+
+ #-------------------------------------------------------------
+ def stage0_init(self, num_cores, num_pipelines, c1, c2):
+ self.n_cores = num_cores
+ self.n_pipelines = num_pipelines
+ self.c1 = c1
+ self.c2 = c2
+
+ #-------------------------------------------------------------
+ def stage0_process(self):
+ #print('inside stage0_process')
+
+ # 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
+
+ #end while
+
+ # check solution
+ if (self.n_pipelines0 == 0):
+ self.stage0_log()
+ self.c1.stage1_init(self, self.c2) # self is object c0
+ self.c1.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
+ #end while
+
+ # rearm
+ self.cores[self.pos].n_pipelines -= 1
+ self.n_pipelines0 += 1
+ self.pos += 1
+ #end while
+ #end function
+
+
+ #-------------------------------------------------------------
+ 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.c1.stage0_file_comment = tmp_file_comment
+ self.c2.stage0_file_comment = tmp_file_comment
+
+ # end function
+
+#end class Context0
+
+
+#-------------------------------------------------------------
+class Context1:
+ #class attribute
+ _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.c2 = None
+ self.arr_pipelines2cores = []
+ #end init
+
+ #-------------------------------------------------------------
+ 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.c2 = None
+ self.arr_pipelines2cores.clear()
+ #end def stage1_reset
+
+ #-------------------------------------------------------------
+ def stage1_print(self):
+ print('printing Context1 obj')
+ print('c1.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('c1.n_cores = %d' %self.n_cores)
+ print('c1.n_pipelines = %d' %self.n_pipelines)
+ print('c1.pos = %d' %self.pos)
+ print('c1.stage0_file_comment = %s' %self.stage0_file_comment)
+ print('c1.stage1_file_comment = %s' %self.stage1_file_comment)
+ if (self.c2 is not None):
+ print('c1.c2 = ', end='')
+ print(self.c2)
+ else:
+ print('c1.c2 = None')
+ #end stage1_print
+
+ #-------------------------------------------------------------
+ def stage1_init(self, c0, c2):
+ 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.c2 = c2
+
+ 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
+ #end while
+ #end stage1_init
+ #-------------------------------------------------------------
+ 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
+ #end if
+
+ 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
+ #end while
+
+ 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.c2.stage2_init(self)
+ self.c2.stage2_process()
+
+ if (self.pos == 0):
+ return
+
+ self.cores[self.pos].pipelines = 0
+ self.pos -= 1
+ continue
+ #endif
+
+ self.pos += 1
+ #end for
+ #end stage1_process
+
+
+ #-------------------------------------------------------------
+ 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
+ #end while
+ print('\n', end ='')
+ #tmp_file_comment += '\n'
+ self.stage1_file_comment = tmp_file_comment
+ self.c2.stage1_file_comment = tmp_file_comment
+ #endif
+
+ #check if file traceing is enabled
+ if(enable_stage1_fileout != 1):
+ return
+
+ #spit out the combination to file
+ self.stage1_process_file()
+ #end function stage1_log
+
+
+ #------------------------------------------------------------------------
+ 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)
+ #debug
+ #print(search_match)
+
+ 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
+ #endif
+ #end function stage1_updateCoresInBuf
+
+ #------------------------------------------------------------------------
+ def stage1_process_file(self):
+ outFileName = os.path.join(self._fileTrace.out_path, \
+ self._fileTrace.prefix_outfile)
+
+ i = 0 #represents core number
+ while (i < self.n_cores):
+ outFileName += '_'
+ outFileName += str(self.cores[i].pipelines)
+
+ 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]
+ #endif
+ j -= 1
+ pipeline_idx += 1
+ #end while
+ i += 1
+ #end while
+
+ # update the in_buf as per the arr_pipelines2cores
+ for pipeline_idx in range(len(self.arr_pipelines2cores)):
+ 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
+ outputFile.write("; =============== Pipeline-to-Core Mapping ================\n")
+ outputFile.write("; Generated from file {}\n".format(self._fileTrace.in_file_namepath))
+ outputFile.write("; Input pipelines = {}\n; Input cores = {}\n" \
+ .format(fileTrace.arr_pipelines, fileTrace.in_physical_cores))
+
+ strTruncated = ("", "(Truncated)") [self._fileTrace.ncores_truncated]
+ outputFile.write("; N_PIPELINES = {} N_CORES = {} {}\n"\
+ .format(self._fileTrace.n_pipelines, self._fileTrace.n_cores, strTruncated))
+
+ outputFile.write("; {}\n".format(self.stage0_file_comment)) #stage0 comment
+ outputFile.write("; {}\n".format(self.stage1_file_comment)) #stage1 comment
+ #debugging
+ #outputFile.write("; <<<<printing stage1 arr_pipelines2cores>>>>")
+ #outputFile.write("; stage1_arr_pipelines2cores = {}".format(self.arr_pipelines2cores))
+ outputFile.write("; ========================================================\n")
+ outputFile.write(";\n")
+
+ #
+ outputFile.write(self._fileTrace.in_buf)
+ outputFile.flush()
+ outputFile.close()
+ #end function stage1_process_file
+# end class Context1
+
+
+#-----------------------------------------------------------------------------
+class Context2:
+ #class attribute
+ _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('c2.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('c2.n_cores = %d' %self.n_cores, end='')
+ print('c2.n_pipelines = %d' %self.n_pipelines, end='')
+ print('c2.pos = %d' %self.pos)
+ print('c2.stage0_file_comment = %s' %self.self.stage0_file_comment)
+ print('c2.stage1_file_comment = %s' %self.self.stage1_file_comment)
+ print('c2.stage2_file_comment = %s' %self.self.stage2_file_comment)
+ #end for
+ #end function stage2_print
+
+
+ #-------------------------------------------------------------
+ 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
+
+ self.arr2_pipelines2cores.clear()
+ #end stage2_reset
+
+ #-------------------------------------------------------------
+ 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, c1):
+ self.stage2_reset()
+ self.n_cores = c1.n_cores
+ self.n_pipelines = c1.n_pipelines
+
+ self.arr2_pipelines2cores = [''] * self.n_pipelines
+
+ core_idx = 0
+ while (core_idx < self.n_cores):
+ self.cores[core_idx].pipelines = c1.cores[core_idx].pipelines
+
+ self.bitpos_load(core_idx)
+ core_idx += 1
+ #end while
+ #end function stage2_init
+
+
+ #-------------------------------------------------------------
+ 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'
+ #end for
+ print('')
+ self.stage2_file_comment = tmp_file_comment
+ #endif
+
+ #check if file traceing is enabled
+ if(enable_stage2_fileout != 1):
+ return
+ #spit out the combination to file
+ self.stage2_process_file()
+
+ #end function stage2_log
+
+ #-------------------------------------------------------------
+ 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'
+ #sSubs = 'core = ' + self._fileTrace.in_physical_cores[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
+ #endif
+ #end function stage2_updateCoresInBuf
+
+
+ #-------------------------------------------------------------
+ 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]
+ #endif
+ #endif
+ i -= 1
+ pipeline_idx += 1
+ #end while
+
+ #end function pipelines2cores
+
+ #-------------------------------------------------------------
+ def stage2_process_file(self):
+ outFileName = os.path.join(self._fileTrace.out_path, \
+ self._fileTrace.prefix_outfile)
+
+ 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)
+
+ outFileName += '_'
+ outFileName += str(pipelines_ht0)
+ outFileName += '_'
+ outFileName += str(pipelines_ht1)
+ outFileName += 'HT'
+
+ #update pipelines to core mapping
+ self.pipelines2cores(pipelines_ht0, self.n_pipelines, i , False)
+ self.pipelines2cores(pipelines_ht1, self.n_pipelines, i, True)
+ #end for
+
+ # update the in_buf as per the arr_pipelines2cores
+ for pipeline_idx in range(len(self.arr2_pipelines2cores)):
+ 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 out the comments
+ outputFile.write("; ========= Pipeline-to-Core Mapping =====================\n")
+ outputFile.write("; Generated from file {}\n".format(self._fileTrace.in_file_namepath))
+ outputFile.write("; Input pipelines = {}\n; Input cores = {}\n" \
+ .format(fileTrace.arr_pipelines, fileTrace.in_physical_cores))
+
+ strTruncated = ("", "(Truncated)") [self._fileTrace.ncores_truncated]
+ outputFile.write("; N_PIPELINES = {} N_CORES = {} {}\n"\
+ .format(self._fileTrace.n_pipelines, self._fileTrace.n_cores, strTruncated))
+
+ outputFile.write("; {}\n".format(self.stage0_file_comment)) #stage0 comment
+ outputFile.write("; {}\n".format(self.stage1_file_comment)) #stage1 comment
+ outputFile.write("; {}\n".format(self.stage2_file_comment)) #stage2 comment
+ outputFile.write("; ========================================================\n")
+ outputFile.write(";\n")
+
+ outputFile.write(self._fileTrace.in_buf)
+ outputFile.flush()
+ outputFile.close()
+
+ #end function stage2_process_file
+
+ #-------------------------------------------------------------
+ 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
+ #end while
+
+ 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
+ #endif
+
+ self.cores[self.pos].counter = 0
+ self.pos -= 1
+ continue
+ #endif
+
+ self.cores[self.pos].counter += 1
+
+ if(self.pos < self.n_cores - 1):
+ self.pos += 1
+ #endif
+ #end while
+#end class Context2
+
+#-----------------------------------------------------------------------------
+class FileTrace:
+ #initialize default parameters
+ 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)
+
+ #set output folder same as input
+ self.out_path = self.in_path
+
+ filenamesplit = self.in_filename.split('.')
+ self.prefix_outfile = filenamesplit[0]
+ self.suffix_outfile = ".cfg"
+ 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
+
+ #end init
+
+ 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)
+ #end function print_TraceFile
+
+#end class FileTrace
+
+
+#-----------------------------------------------------------------------------
+# main process method
+#
+def process(n_cores, n_pipelines, fileTrace):
+ if (n_cores == 0):
+ sys.exit('N_CORES is 0, exiting')
+ #endif
+
+ if (n_pipelines == 0):
+ sys.exit('N_PIPELINES is 0, exiting')
+ #endif
+
+ if (n_cores > n_pipelines):
+ print('\nToo many cores, truncating N_CORES to N_PIPELINES')
+ n_cores = n_pipelines
+ fileTrace.ncores_truncated = True
+ #endif
+ 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("---------------------------------------------------------------")
+
+ c0 = Context0()
+ c1 = Context1()
+ c2 = Context2()
+
+ #initialize the class variables
+ c1._fileTrace = fileTrace
+ c2._fileTrace = fileTrace
+
+ c0.stage0_init(n_cores, n_pipelines, c1, c2)
+ c0.stage0_process()
+
+#end function process
+
+
+
+#--------------------------------------------------------------------------
+def validate_core(core):
+ match = reg_phycore.match(core)
+ if(match):
+ return True
+ else:
+ return False
+ #endif
+#end function validate_core
+
+
+#--------------------------------------------------------------------------
+def validate_phycores(phy_cores):
+ #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 False
+ #endif
+
+ for core in phy_cores:
+ if(validate_core(core) != True):
+ print('invalid physical core specified.')
+ return None
+ else:
+ return phy_cores
+ #endif
+ #endfor
+#end function validate_phycores
+
+#--------------------------------------------------------------------------
+def scanconfigfile(fileTrace):
+ #debug
+ #fileTrace.print_TraceFile()
+
+ # 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()]
+ #sPipeline = sPipeline.strip('[]')
+ pending_pipeline = True
+ elif(match_type):
+ # found a type definition...
+ if(match_mastertype == None):
+ # and this is not a master pipeline...
+ if(pending_pipeline == True):
+ # 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
+ #endif
+ #endif
+ #endfor
+ 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')
+ #endif
+
+ num_pipelines = len(fileTrace.arr_pipelines)
+ num_cores = len(fileTrace.in_physical_cores)
+
+ #debug
+ #print(fileTrace.matches_pipeline)
+ 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)
+
+#end function scanconfigfile
+
+
+#-----------------------------------------------------------------------------
+# python trick - so that our Python files can act as either reusable modules,
+# or as standalone programs
+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)
+
+ #--physical-cores “<core>, <core>, …”, with <core> = s<SOCKETID>c<COREID>
+ 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()
+
+ # 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
+ #endif
+
+ if(args.no_output_file == True):
+ print("!!!!disabling stage1 and stage2 fileout!!!!")
+ enable_stage1_fileout = 0
+ enable_stage2_fileout = 0
+ #endif
+
+ scanconfigfile(fileTrace)
+
+#end main
--
2.5.5
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