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#!/usr/bin/env python
# ==================================================================================================
# This file is part of the CLBlast project. The project is licensed under Apache Version 2.0. This
# project loosely follows the Google C++ styleguide and uses a max-width of 100 characters per line.
#
# Author(s):
# Cedric Nugteren <www.cedricnugteren.nl>
#
# This script automatically generates the bodies of the following files, creating the full CLBlast
# API interface and implementation (C, C++, and reference BLAS wrappers):
# clblast.h
# clblast.cc
# clblast_c.h
# clblast_c.cc
# wrapper_clblas.h
# wrapper_cblas.h
# It also generates the main functions for the correctness and performance tests as found in
# test/correctness/routines/levelX/xYYYY.cc
# test/performance/routines/levelX/xYYYY.cc
#
# ==================================================================================================
# System modules
import sys
import os.path
# Local files
from routine import Routine
from datatype import DataType, FLT, DBL, FLT2, DBL2, F2CL, D2CL
# ==================================================================================================
# Regular data-types
S = DataType("S", "S", FLT, [FLT, FLT, FLT, FLT], FLT ) # single (32)
D = DataType("D", "D", DBL, [DBL, DBL, DBL, DBL], DBL ) # double (64)
C = DataType("C", "C", FLT2, [FLT2, FLT2, F2CL, F2CL], FLT2) # single-complex (3232)
Z = DataType("Z", "Z", DBL2, [DBL2, DBL2, D2CL, D2CL], DBL2) # double-complex (6464)
# Special cases
Sc = DataType("C", "Sc", FLT2, [FLT2, FLT2, FLT2, FLT2], FLT2) # As C, but with real output
Dz = DataType("Z", "Dz", DBL2, [DBL2, DBL2, DBL2, DBL2], DBL2) # As Z, but with real output
iS = DataType("S", "iS", FLT, [FLT, FLT, FLT, FLT], FLT ) # As S, but with integer output
iD = DataType("D", "iD", DBL, [DBL, DBL, DBL, DBL], DBL ) # As D, but with integer output
iC = DataType("C", "iC", FLT2, [FLT2, FLT2, F2CL, F2CL], FLT2) # As C, but with integer output
iZ = DataType("Z", "iZ", DBL2, [DBL2, DBL2, D2CL, D2CL], DBL2) # As Z, but with integer output
Css = DataType("C", "C", FLT, [FLT, FLT, FLT, FLT], FLT2) # As C, but with constants from S
Zdd = DataType("Z", "Z", DBL, [DBL, DBL, DBL, DBL], DBL2) # As Z, but with constants from D
Ccs = DataType("C", "C", FLT2+","+FLT, [FLT2, FLT, F2CL, FLT], FLT2) # As C, but with one constant from S
Zzd = DataType("Z", "Z", DBL2+","+DBL, [DBL2, DBL, D2CL, DBL], DBL2) # As Z, but with one constant from D
# C++ template data-types
T = DataType("T", "typename T", "T", ["T", "T", "T", "T"], "T") # regular routine
Tc = DataType("Tc", "typename T", "std::complex<T>,T", ["T", "T", "T", "T"], "std::complex<T>") # for herk
TU = DataType("TU", "typename T, typename U", "T,U", ["T", "U", "T", "U"], "T") # for her2k
# ==================================================================================================
# Populates a list of routines
routines = [
[ # Level 1: vector-vector
Routine(False, True, "1", "rotg", T, [S,D], [], [], [], ["sa","sb","sc","ss"], [], "", "Generate givens plane rotation"),
Routine(False, True, "1", "rotmg", T, [S,D], [], [], ["sy1"], ["sd1","sd2","sx1","sparam"], [], "", "Generate modified givens plane rotation"),
Routine(False, True, "1", "rot", T, [S,D], ["n"], [], [], ["x","y"], ["cos","sin"], "", "Apply givens plane rotation"),
Routine(False, True, "1", "rotm", T, [S,D], ["n"], [], [], ["x","y","sparam"], [], "", "Apply modified givens plane rotation"),
Routine(True, True, "1", "swap", T, [S,D,C,Z], ["n"], [], [], ["x","y"], [], "", "Swap two vectors"),
Routine(True, True, "1", "scal", T, [S,D,C,Z], ["n"], [], [], ["x"], ["alpha"], "", "Vector scaling"),
Routine(True, True, "1", "copy", T, [S,D,C,Z], ["n"], [], ["x"], ["y"], [], "", "Vector copy"),
Routine(True, True, "1", "axpy", T, [S,D,C,Z], ["n"], [], ["x"], ["y"], ["alpha"], "", "Vector-times-constant plus vector"),
Routine(True, True, "1", "dot", T, [S,D], ["n"], [], ["x","y"], ["dot"], [], "n", "Dot product of two vectors"),
Routine(True, True, "1", "dotu", T, [C,Z], ["n"], [], ["x","y"], ["dot"], [], "n", "Dot product of two complex vectors"),
Routine(True, True, "1", "dotc", T, [C,Z], ["n"], [], ["x","y"], ["dot"], [], "n", "Dot product of two complex vectors, one conjugated"),
Routine(True, True, "1", "nrm2", T, [S,D,Sc,Dz],["n"], [], ["x"], ["nrm2"], [], "2*n", "Euclidian norm of a vector"),
Routine(True, True, "1", "asum", T, [S,D,Sc,Dz],["n"], [], ["x"], ["asum"], [], "n", "Absolute sum of values in a vector"),
Routine(True, False, "1", "sum", T, [S,D,Sc,Dz],["n"], [], ["x"], ["sum"], [], "n", "Sum of values in a vector (non-BLAS function)"),
Routine(True, True, "1", "amax", T, [iS,iD,iC,iZ],["n"], [], ["x"], ["imax"], [], "2*n", "Index of absolute maximum value in a vector"),
Routine(True, False, "1", "max", T, [iS,iD,iC,iZ],["n"], [], ["x"], ["imax"], [], "2*n", "Index of maximum value in a vector (non-BLAS function)"),
],
[ # Level 2: matrix-vector
Routine(True, True, "2a", "gemv", T, [S,D,C,Z], ["m","n"], ["layout","a_transpose"], ["a","x"], ["y"], ["alpha","beta"], "", "General matrix-vector multiplication"),
Routine(True, True, "2a", "gbmv", T, [S,D,C,Z], ["m","n","kl","ku"], ["layout","a_transpose"], ["a","x"], ["y"], ["alpha","beta"], "", "General banded matrix-vector multiplication"),
Routine(True, True, "2a", "hemv", T, [C,Z], ["n"], ["layout","triangle"], ["a","x"], ["y"], ["alpha","beta"], "", "Hermitian matrix-vector multiplication"),
Routine(True, True, "2a", "hbmv", T, [C,Z], ["n","k"], ["layout","triangle"], ["a","x"], ["y"], ["alpha","beta"], "", "Hermitian banded matrix-vector multiplication"),
Routine(True, True, "2a", "hpmv", T, [C,Z], ["n"], ["layout","triangle"], ["ap","x"], ["y"], ["alpha","beta"], "", "Hermitian packed matrix-vector multiplication"),
Routine(True, True, "2a", "symv", T, [S,D], ["n"], ["layout","triangle"], ["a","x"], ["y"], ["alpha","beta"], "", "Symmetric matrix-vector multiplication"),
Routine(True, True, "2a", "sbmv", T, [S,D], ["n","k"], ["layout","triangle"], ["a","x"], ["y"], ["alpha","beta"], "", "Symmetric banded matrix-vector multiplication"),
Routine(True, True, "2a", "spmv", T, [S,D], ["n"], ["layout","triangle"], ["ap","x"], ["y"], ["alpha","beta"], "", "Symmetric packed matrix-vector multiplication"),
Routine(True, True, "2a", "trmv", T, [S,D,C,Z], ["n"], ["layout","triangle","a_transpose","diagonal"], ["a"], ["x"], [], "n", "Triangular matrix-vector multiplication"),
Routine(True, True, "2a", "tbmv", T, [S,D,C,Z], ["n","k"], ["layout","triangle","a_transpose","diagonal"], ["a"], ["x"], [], "n", "Triangular banded matrix-vector multiplication"),
Routine(True, True, "2a", "tpmv", T, [S,D,C,Z], ["n"], ["layout","triangle","a_transpose","diagonal"], ["ap"], ["x"], [], "n", "Triangular packed matrix-vector multiplication"),
Routine(False, True, "2a", "trsv", T, [S,D,C,Z], ["n"], ["layout","triangle","a_transpose","diagonal"], ["a"], ["x"], [], "", "Solves a triangular system of equations"),
Routine(False, True, "2a", "tbsv", T, [S,D,C,Z], ["n","k"], ["layout","triangle","a_transpose","diagonal"], ["a"], ["x"], [], "", "Solves a banded triangular system of equations"),
Routine(False, True, "2a", "tpsv", T, [S,D,C,Z], ["n"], ["layout","triangle","a_transpose","diagonal"], ["ap"], ["x"], [], "", "Solves a packed triangular system of equations"),
# Level 2: matrix update
Routine(True, True, "2b", "ger", T, [S,D], ["m","n"], ["layout"], ["x","y"], ["a"], ["alpha"], "", "General rank-1 matrix update"),
Routine(True, True, "2b", "geru", T, [C,Z], ["m","n"], ["layout"], ["x","y"], ["a"], ["alpha"], "", "General rank-1 complex matrix update"),
Routine(True, True, "2b", "gerc", T, [C,Z], ["m","n"], ["layout"], ["x","y"], ["a"], ["alpha"], "", "General rank-1 complex conjugated matrix update"),
Routine(True, True, "2b", "her", Tc, [Css,Zdd], ["n"], ["layout","triangle"], ["x"], ["a"], ["alpha"], "", "Hermitian rank-1 matrix update"),
Routine(True, True, "2b", "hpr", Tc, [Css,Zdd], ["n"], ["layout","triangle"], ["x"], ["ap"], ["alpha"], "", "Hermitian packed rank-1 matrix update"),
Routine(True, True, "2b", "her2", T, [C,Z], ["n"], ["layout","triangle"], ["x","y"], ["a"], ["alpha"], "", "Hermitian rank-2 matrix update"),
Routine(True, True, "2b", "hpr2", T, [C,Z], ["n"], ["layout","triangle"], ["x","y"], ["ap"], ["alpha"], "", "Hermitian packed rank-2 matrix update"),
Routine(True, True, "2b", "syr", T, [S,D], ["n"], ["layout","triangle"], ["x"], ["a"], ["alpha"], "", "Symmetric rank-1 matrix update"),
Routine(True, True, "2b", "spr", T, [S,D], ["n"], ["layout","triangle"], ["x"], ["ap"], ["alpha"], "", "Symmetric packed rank-1 matrix update"),
Routine(True, True, "2b", "syr2", T, [S,D], ["n"], ["layout","triangle"], ["x","y"], ["a"], ["alpha"], "", "Symmetric rank-2 matrix update"),
Routine(True, True, "2b", "spr2", T, [S,D], ["n"], ["layout","triangle"], ["x","y"], ["ap"], ["alpha"], "", "Symmetric packed rank-2 matrix update"),
],
[ # Level 3: matrix-matrix
Routine(True, True, "3", "gemm", T, [S,D,C,Z], ["m","n","k"], ["layout","a_transpose","b_transpose"], ["a","b"], ["c"], ["alpha","beta"], "", "General matrix-matrix multiplication"),
Routine(True, True, "3", "symm", T, [S,D,C,Z], ["m","n"], ["layout","side","triangle"], ["a","b"], ["c"], ["alpha","beta"], "", "Symmetric matrix-matrix multiplication"),
Routine(True, True, "3", "hemm", T, [C,Z], ["m","n"], ["layout","side","triangle"], ["a","b"], ["c"], ["alpha","beta"], "", "Hermitian matrix-matrix multiplication"),
Routine(True, True, "3", "syrk", T, [S,D,C,Z], ["n","k"], ["layout","triangle","a_transpose"], ["a"], ["c"], ["alpha","beta"], "", "Rank-K update of a symmetric matrix"),
Routine(True, True, "3", "herk", Tc, [Css,Zdd], ["n","k"], ["layout","triangle","a_transpose"], ["a"], ["c"], ["alpha","beta"], "", "Rank-K update of a hermitian matrix"),
Routine(True, True, "3", "syr2k", T, [S,D,C,Z], ["n","k"], ["layout","triangle","ab_transpose"], ["a","b"], ["c"], ["alpha","beta"], "", "Rank-2K update of a symmetric matrix"),
Routine(True, True, "3", "her2k", TU, [Ccs,Zzd], ["n","k"], ["layout","triangle","ab_transpose"], ["a","b"], ["c"], ["alpha","beta"], "", "Rank-2K update of a hermitian matrix"),
Routine(True, True, "3", "trmm", T, [S,D,C,Z], ["m","n"], ["layout","side","triangle","a_transpose","diagonal"], ["a"], ["b"], ["alpha"], "", "Triangular matrix-matrix multiplication"),
Routine(False, True, "3", "trsm", T, [S,D,C,Z], ["m","n"], ["layout","side","triangle","a_transpose","diagonal"], ["a"], ["b"], ["alpha"], "", "Solves a triangular system of equations"),
]]
# ==================================================================================================
# Translates an option name to a CLBlast data-type
def PrecisionToFullName(x):
return {
'H': "Half",
'S': "Single",
'D': "Double",
'C': "ComplexSingle",
'Z': "ComplexDouble",
}[x]
# ==================================================================================================
# Separators for the BLAS levels
separators = ["""
// =================================================================================================
// BLAS level-1 (vector-vector) routines
// =================================================================================================""",
"""
// =================================================================================================
// BLAS level-2 (matrix-vector) routines
// =================================================================================================""",
"""
// =================================================================================================
// BLAS level-3 (matrix-matrix) routines
// ================================================================================================="""]
# Main header/footer for source files
header = """
// =================================================================================================
// This file is part of the CLBlast project. The project is licensed under Apache Version 2.0. This
// project loosely follows the Google C++ styleguide and uses a tab-size of two spaces and a max-
// width of 100 characters per line.
//
// Author(s):
// Cedric Nugteren <www.cedricnugteren.nl>
//
// =================================================================================================
"""
footer = """
// =================================================================================================
"""
# ==================================================================================================
# The C++ API header (.h)
def clblast_h(routines):
result = ""
for routine in routines:
result += "\n// "+routine.description+": "+routine.ShortNames()+"\n"
result += routine.RoutineHeaderCPP(12, " = nullptr")+";\n"
return result
# The C++ API implementation (.cc)
def clblast_cc(routines):
result = ""
for routine in routines:
indent1 = " "*(20 + routine.Length())
result += "\n// "+routine.description+": "+routine.ShortNames()+"\n"
if routine.implemented:
result += routine.RoutineHeaderCPP(12, "")+" {\n"
result += " auto queue_cpp = Queue(*queue);\n"
result += " auto routine = X"+routine.name+"<"+routine.template.template+">(queue_cpp, event);\n"
result += " auto status = routine.SetUp();\n"
result += " if (status != StatusCode::kSuccess) { return status; }\n"
result += " return routine.Do"+routine.name.capitalize()+"("
result += (",\n"+indent1).join([a for a in routine.ArgumentsCladuc(routine.template, indent1)])
result += ");\n"
else:
result += routine.RoutineHeaderTypeCPP(12)+" {\n"
result += " return StatusCode::kNotImplemented;\n"
result += "}\n"
for flavour in routine.flavours:
indent2 = " "*(34 + routine.Length() + len(flavour.template))
result += "template StatusCode PUBLIC_API "+routine.name.capitalize()+"<"+flavour.template+">("
result += (",\n"+indent2).join([a for a in routine.ArgumentsType(flavour)])
result += ",\n"+indent2+"cl_command_queue*, cl_event*);\n"
return result
# ==================================================================================================
# The C API header (.h)
def clblast_c_h(routines):
result = ""
for routine in routines:
result += "\n// "+routine.description+": "+routine.ShortNames()+"\n"
for flavour in routine.flavours:
result += routine.RoutineHeaderC(flavour, 31, " PUBLIC_API")+";\n"
return result
# The C API implementation (.cc)
def clblast_c_cc(routines):
result = ""
for routine in routines:
result += "\n// "+routine.name.upper()+"\n"
for flavour in routine.flavours:
template = "<"+flavour.template+">" if routine.NoScalars() else ""
indent = " "*(26 + routine.Length() + len(template))
result += routine.RoutineHeaderC(flavour, 20, "")+" {\n"
result += " auto status = clblast::"+routine.name.capitalize()+template+"("
result += (",\n"+indent).join([a for a in routine.ArgumentsCast(flavour, indent)])
result += ",\n"+indent+"queue, event);"
result += "\n return static_cast<StatusCode>(status);\n}\n"
return result
# ==================================================================================================
# The wrapper to the reference clBLAS routines (for performance/correctness testing)
def wrapper_clblas(routines):
result = ""
for routine in routines:
if routine.has_tests:
result += "\n// Forwards the clBLAS calls for %s\n" % (routine.ShortNames())
if routine.NoScalars():
result += routine.RoutineHeaderWrapperCL(routine.template, True, 21)+";\n"
for flavour in routine.flavours:
indent = " "*(17 + routine.Length())
result += routine.RoutineHeaderWrapperCL(flavour, False, 21)+" {\n"
arguments = routine.ArgumentsWrapperCL(flavour)
if routine.scratch:
result += " auto queue = Queue(queues[0]);\n"
result += " auto context = queue.GetContext();\n"
result += " auto scratch_buffer = Buffer<"+flavour.template+">(context, "+routine.scratch+");\n"
arguments += ["scratch_buffer()"]
result += " return clblas"+flavour.name+routine.name+"("
result += (",\n"+indent).join([a for a in arguments])
result += ",\n"+indent+"num_queues, queues, num_wait_events, wait_events, events);"
result += "\n}\n"
return result
# The wrapper to the reference CBLAS routines (for performance/correctness testing)
def wrapper_cblas(routines):
result = ""
for routine in routines:
if routine.has_tests:
result += "\n// Forwards the Netlib BLAS calls for %s\n" % (routine.ShortNames())
for flavour in routine.flavours:
indent = " "*(10 + routine.Length())
result += routine.RoutineHeaderWrapperC(flavour, False, 12)+" {\n"
arguments = routine.ArgumentsWrapperC(flavour)
# Double-precision scalars
for scalar in routine.scalars:
if flavour.IsComplex(scalar):
result += " const auto "+scalar+"_array = std::vector<"+flavour.buffertype[:-1]+">{"+scalar+".real(), "+scalar+".imag()};\n"
# Special case for scalar outputs
assignment = ""
postfix = ""
extra_argument = ""
for output_buffer in routine.outputs:
if output_buffer in routine.ScalarBuffersFirst():
if flavour in [C,Z]:
postfix += "_sub"
indent += " "
extra_argument += ",\n"+indent+"reinterpret_cast<return_pointer_"+flavour.buffertype[:-1]+">(&"+output_buffer+"_buffer["+output_buffer+"_offset])"
else:
assignment = output_buffer+"_buffer["+output_buffer+"_offset] = "
indent += " "*len(assignment)
result += " "+assignment+"cblas_"+flavour.name.lower()+routine.name+postfix+"("
result += (",\n"+indent).join([a for a in arguments])
result += extra_argument+");"
result += "\n}\n"
return result
# ==================================================================================================
# Checks for the number of command-line arguments
if len(sys.argv) != 2:
print "[ERROR] Usage: generator.py <root_of_clblast>"
sys.exit()
# Parses the command-line arguments
path_clblast = sys.argv[1]
files = [
path_clblast+"/include/clblast.h",
path_clblast+"/src/clblast.cc",
path_clblast+"/include/clblast_c.h",
path_clblast+"/src/clblast_c.cc",
path_clblast+"/test/wrapper_clblas.h",
path_clblast+"/test/wrapper_cblas.h",
]
header_lines = [84, 70, 93, 22, 29, 38]
footer_lines = [17, 70, 19, 14, 6, 6]
# Checks whether the command-line arguments are valid; exists otherwise
for f in files:
if not os.path.isfile(f):
print "[ERROR] The path '"+path_clblast+"' does not point to the root of the CLBlast library"
sys.exit()
# ==================================================================================================
# Iterates over all files to output
for i in xrange(0,len(files)):
# Stores the header and the footer of the original file
with open(files[i]) as f:
original = f.readlines()
file_header = original[:header_lines[i]]
file_footer = original[-footer_lines[i]:]
# Re-writes the body of the file
with open(files[i], "w") as f:
body = ""
for level in [1,2,3]:
body += separators[level-1]+"\n"
if i == 0:
body += clblast_h(routines[level-1])
if i == 1:
body += clblast_cc(routines[level-1])
if i == 2:
body += clblast_c_h(routines[level-1])
if i == 3:
body += clblast_c_cc(routines[level-1])
if i == 4:
body += wrapper_clblas(routines[level-1])
if i == 5:
body += wrapper_cblas(routines[level-1])
f.write("".join(file_header))
f.write(body)
f.write("".join(file_footer))
# ==================================================================================================
# Outputs all the correctness-test implementations
for level in [1,2,3]:
for routine in routines[level-1]:
if routine.has_tests:
filename = path_clblast+"/test/correctness/routines/level"+str(level)+"/x"+routine.name+".cc"
with open(filename, "w") as f:
body = ""
body += "#include \"correctness/testblas.h\"\n"
body += "#include \"routines/level"+str(level)+"/x"+routine.name+".h\"\n\n"
body += "// Shortcuts to the clblast namespace\n"
body += "using float2 = clblast::float2;\n"
body += "using double2 = clblast::double2;\n\n"
body += "// Main function (not within the clblast namespace)\n"
body += "int main(int argc, char *argv[]) {\n"
not_first = "false"
for flavour in routine.flavours:
body += " clblast::RunTests<clblast::TestX"+routine.name+flavour.TestTemplate()
body += ">(argc, argv, "+not_first+", \""+flavour.name+routine.name.upper()+"\");\n"
not_first = "true"
body += " return 0;\n"
body += "}\n"
f.write(header+"\n")
f.write(body)
f.write(footer)
# Outputs all the performance-test implementations
for level in [1,2,3]:
for routine in routines[level-1]:
if routine.has_tests:
filename = path_clblast+"/test/performance/routines/level"+str(level)+"/x"+routine.name+".cc"
with open(filename, "w") as f:
body = ""
body += "#include \"performance/client.h\"\n"
body += "#include \"routines/level"+str(level)+"/x"+routine.name+".h\"\n\n"
body += "// Shortcuts to the clblast namespace\n"
body += "using float2 = clblast::float2;\n"
body += "using double2 = clblast::double2;\n\n"
body += "// Main function (not within the clblast namespace)\n"
body += "int main(int argc, char *argv[]) {\n"
default = PrecisionToFullName(routine.flavours[0].precision_name)
body += " switch(clblast::GetPrecision(argc, argv, clblast::Precision::k"+default+")) {\n"
for precision in ["H","S","D","C","Z"]:
body += " case clblast::Precision::k"+PrecisionToFullName(precision)+":"
found = False
for flavour in routine.flavours:
if flavour.precision_name == precision:
body += "\n clblast::RunClient<clblast::TestX"+routine.name+flavour.TestTemplate()
body += ">(argc, argv); break;\n"
found = True
if not found:
body += " throw std::runtime_error(\"Unsupported precision mode\");\n"
body += " }\n"
body += " return 0;\n"
body += "}\n"
f.write(header+"\n")
f.write(body)
f.write(footer)
# ==================================================================================================
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