Centre Blaise Pascal » Bench4GPU

#!/usr/bin/env python

#

# Pi-by-MonteCarlo using PyCUDA/PyOpenCL

#

# CC BY-NC-SA 2011 : Emmanuel QUEMENER <emmanuel.quemener@gmail.com>

# Cecill v2 : Emmanuel QUEMENER <emmanuel.quemener@gmail.com>

#

# Thanks to Andreas Klockner for PyCUDA:

# http://mathema.tician.de/software/pycuda

# Thanks to Andreas Klockner for PyOpenCL:

# http://mathema.tician.de/software/pyopencl

#

# 2013-01-01 : problems with launch timeout

# http://stackoverflow.com/questions/497685/how-do-you-get-around-the-maximum-cuda-run-time

# Option "Interactive" "0" in /etc/X11/xorg.conf

# Common tools

import numpy

from numpy.random import randint as nprnd

import sys

import getopt

import time

import math

import itertools

from socket import gethostname

from threading import Thread

class threadWithReturn(Thread):

    def __init__(self, *args, **kwargs):

        super(threadWithReturn, self).__init__(*args, **kwargs)

        self._return = None

    def run(self):

        if self._Thread__target is not None:

            self._return = self._Thread__target(*self._Thread__args, **self._Thread__kwargs)

    def join(self, *args, **kwargs):

        super(threadWithReturn, self).join(*args, **kwargs)

        return self._return

from PiXPU import *

if __name__=='__main__':

    # MPI Init

    comm = MPI.COMM_WORLD

    rank = comm.Get_rank()

    # Define number of Nodes on with computing is performed (exclude 0)

    RankSize=comm.Get_size()

    if rank == 0:

        # Set defaults values

        # Id of Device : 1 is for first find !

        Device=1

        # GPU style can be Cuda (Nvidia implementation) or OpenCL

        GpuStyle='OpenCL'

        # Iterations is integer

        Iterations=10000000

        # BlocksBlocks in first number of Blocks to explore

        BlocksBegin=1

        # BlocksEnd is last number of Blocks to explore

        BlocksEnd=16

        # BlocksStep is the step of Blocks to explore

        BlocksStep=1

        # ThreadsBlocks in first number of Blocks to explore

        ThreadsBegin=1

        # ThreadsEnd is last number of Blocks to explore

        ThreadsEnd=1

        # ThreadsStep is the step of Blocks to explore

        ThreadsStep=1

        # Redo is the times to redo the test to improve metrology

        Redo=1

        # OutMetrology is method for duration estimation : False is GPU inside

        OutMetrology=False

        Metrology='InMetro'

        # Curves is True to print the curves

        Curves=False

        # Fit is True to print the curves

        Fit=False

        # Marsaglia RNG

        RNG='MWC'

        # Value type : INT32, INT64, FP32, FP64

        ValueType='FP32'

        HowToUse='%s -o (Out of Core Metrology) -c (Print Curves) -d <DeviceId> -g <CUDA/OpenCL> -i <Iterations> -b <BlocksBegin> -e <BlocksEnd> -s <BlocksStep> -f <ThreadsFirst> -l <ThreadsLast> -t <ThreadssTep> -r <RedoToImproveStats> -m <SHR3/CONG/MWC/KISS> -v <INT32/INT64/FP32/FP64>'

        try:

            opts, args = getopt.getopt(sys.argv[1:],"hocg:i:b:e:s:f:l:t:r:d:m:v:",["gpustyle=","iterations=","blocksBegin=","blocksEnd=","blocksStep=","threadsFirst=","threadsLast=","threadssTep=","redo=","device=","marsaglia=","valuetype="])

        except getopt.GetoptError:

            print HowToUse % sys.argv[0]

            sys.exit(2)

        # List of Devices

        Devices=[]

        Alu={}

        for opt, arg in opts:

            if opt == '-h':

                print HowToUse % sys.argv[0]

                print "\nInformations about devices detected under OpenCL:"

                # For PyOpenCL import

                try:

                    import pyopencl as cl

                    Id=1

                    for platform in cl.get_platforms():

                        for device in platform.get_devices():

                            deviceType=cl.device_type.to_string(device.type)

                            print "Device #%i from %s of type %s : %s" % (Id,platform.vendor.lstrip(),deviceType,device.name.lstrip())

                            Id=Id+1

                    print

                    sys.exit()

                except ImportError:

                    print "Your platform does not seem to support OpenCL"

            elif opt == '-o':

                OutMetrology=True

                Metrology='OutMetro'

            elif opt == '-c':

                Curves=True

            elif opt in ("-d", "--device"):

                Devices.append(int(arg))

            elif opt in ("-g", "--gpustyle"):

                GpuStyle = arg

            elif opt in ("-m", "--marsaglia"):

                RNG = arg

            elif opt in ("-v", "--valuetype"):

                ValueType = arg

            elif opt in ("-i", "--iterations"):

                Iterations = numpy.uint64(arg)

            elif opt in ("-b", "--blocksbegin"):

                BlocksBegin = int(arg)

            elif opt in ("-e", "--blocksend"):

                BlocksEnd = int(arg)

            elif opt in ("-s", "--blocksstep"):

                BlocksStep = int(arg)

            elif opt in ("-f", "--threadsfirst"):

                ThreadsBegin = int(arg)

            elif opt in ("-l", "--threadslast"):

                ThreadsEnd = int(arg)

            elif opt in ("-t", "--threadsstep"):

                ThreadsStep = int(arg)

            elif opt in ("-r", "--redo"):

                Redo = int(arg)

        print "Devices Identification : %s" % Devices

        print "GpuStyle used : %s" % GpuStyle

        print "Iterations : %s" % Iterations

        print "Number of Blocks on begin : %s" % BlocksBegin

        print "Number of Blocks on end : %s" % BlocksEnd

        print "Step on Blocks : %s" % BlocksStep

        print "Number of Threads on begin : %s" % ThreadsBegin

        print "Number of Threads on end : %s" % ThreadsEnd

        print "Step on Threads : %s" % ThreadsStep

        print "Number of redo : %s" % Redo

        print "Metrology done out of XPU : %r" % OutMetrology

        print "Type of Marsaglia RNG used : %s" % RNG

        print "Type of variable : %s" % ValueType

        if GpuStyle=='CUDA':

            try:

                # For PyCUDA import

                import pycuda.driver as cuda

                import pycuda.gpuarray as gpuarray

                import pycuda.autoinit

                from pycuda.compiler import SourceModule

            except ImportError:

                print "Platform does not seem to support CUDA"

        if GpuStyle=='OpenCL':

            try:

                # For PyOpenCL import

                import pyopencl as cl

                Id=1

                for platform in cl.get_platforms():

                    for device in platform.get_devices():

                        deviceType=cl.device_type.to_string(device.type)

                        print "Device #%i from %s of type %s : %s" % (Id,platform.vendor.lstrip().rstrip(),deviceType,device.name.lstrip().rstrip())

                        if Id in Devices:

                            # Set the Alu as detected Device Type

                            Alu[Id]=deviceType

                        Id=Id+1

            except ImportError:

                print "Platform does not seem to support OpenCL"

        print Devices,Alu

        BlocksList=xrange(BlocksBegin,BlocksEnd+BlocksStep,BlocksStep)

        ThreadsList=xrange(ThreadsBegin,ThreadsEnd+ThreadsStep,ThreadsStep)

        ExploredJobs=numpy.array([]).astype(numpy.uint32)

        ExploredBlocks=numpy.array([]).astype(numpy.uint32)

        ExploredThreads=numpy.array([]).astype(numpy.uint32)

        avgD=numpy.array([]).astype(numpy.float32)

        medD=numpy.array([]).astype(numpy.float32)

        stdD=numpy.array([]).astype(numpy.float32)

        minD=numpy.array([]).astype(numpy.float32)

        maxD=numpy.array([]).astype(numpy.float32)

        avgR=numpy.array([]).astype(numpy.float32)

        medR=numpy.array([]).astype(numpy.float32)

        stdR=numpy.array([]).astype(numpy.float32)

        minR=numpy.array([]).astype(numpy.float32)

        maxR=numpy.array([]).astype(numpy.float32)

        for Blocks,Threads in itertools.product(BlocksList,ThreadsList):

            # print Blocks,Threads

            circle=numpy.zeros(Blocks*Threads).astype(numpy.uint64)

            ExploredJobs=numpy.append(ExploredJobs,Blocks*Threads)

            ExploredBlocks=numpy.append(ExploredBlocks,Blocks)

            ExploredThreads=numpy.append(ExploredThreads,Threads)

            if OutMetrology:

                DurationItem=numpy.array([]).astype(numpy.float32)

                Duration=numpy.array([]).astype(numpy.float32)

                Rate=numpy.array([]).astype(numpy.float32)

                for i in range(Redo):

                    start=time.time()

                    if GpuStyle=='CUDA':

                        try:

                            Inside,NewIterations,DurationItem=MetropolisCuda(circle,Iterations,1,Blocks,Threads,RNG,ValueType)

                        except:

                            print "Problem with (%i,%i) // computations on Cuda" % (Blocks,Threads)

                    elif GpuStyle=='OpenCL':

                        try:

                            MetroParamCL={}

                            MetroParamCL['Iterations']=Iterations

                            MetroParamCL['Steps']=1

                            MetroParamCL['Blocks']=Blocks

                            MetroParamCL['Threads']=Threads

                            MetroParamCL['Device']=Devices[0]

                            MetroParamCL['RNG']=RNG

                            MetroParamCL['ValueType']=ValueType

                            OutputCL=MetropolisOpenCL(MetroParamCL)

                        except:

                            print "Problem with (%i,%i) // computations on OpenCL" % (Blocks,Threads)

                    Duration=numpy.append(Duration,time.time()-start)

                    Rate=numpy.append(Rate,NewIterations/Duration[-1])

            else:

                if GpuStyle=='CUDA':

                    try:

                        Inside,NewIterations,Duration=MetropolisCuda(circle,Iterations,Redo,Blocks,Threads,RNG,ValueType)

                    except:

                        print "Problem with (%i,%i) // computations on Cuda" % (Blocks,Threads)

                elif GpuStyle=='OpenCL':

                    try:

                        IterationsMPI=numpy.uint64(Iterations/len(Devices))

                        if Iterations%len(Devices)!=0:

                            IterationsMPI+=1

                        r=1

                        time_start=time.time()

                        for Device in Devices:

                            InputCL={}

                            InputCL['Iterations']=IterationsMPI

                            InputCL['Steps']=Redo

                            InputCL['Blocks']=Blocks

                            InputCL['Threads']=Threads

                            InputCL['Device']=Device

                            InputCL['RNG']=RNG

                            InputCL['ValueType']=ValueType

                            print "Send to device %i on rank %i" % (Device,r)

                            comm.send('CONTINUE',dest=r,tag=11)

                            comm.send(InputCL,dest=r,tag=11)

                            r+=1

                        Inside=0

                        NewIterations=0

                        for slave in xrange(1,len(Devices)+1):

                            print "slave %i" % slave

                            OutputCL=comm.recv(source=slave,tag=11)

                            print "OutputCL from rank %s %s" % (slave,OutputCL)

                            NewIterations+=OutputCL['NewIterations']

                            Inside+=OutputCL['Inside']

                        Duration=time.time()-time_start

                        print "Pi estimation %.8f" % (4./NewIterations*Inside)

                    except:

                        print "Problem with (%i,%i) // computations on OpenCL" % (Blocks,Threads)

            Duration=OutputCL['Duration']

            NewIterations=OutputCL['NewIterations']

            Rate=NewIterations/Duration

            avgD=numpy.append(avgD,numpy.average(Duration))

            medD=numpy.append(medD,numpy.median(Duration))

            stdD=numpy.append(stdD,numpy.std(Duration))

            minD=numpy.append(minD,numpy.min(Duration))

            maxD=numpy.append(maxD,numpy.max(Duration))

            avgR=numpy.append(avgR,numpy.average(Rate))

            medR=numpy.append(medR,numpy.median(Rate))

            stdR=numpy.append(stdR,numpy.std(Rate))

            minR=numpy.append(minR,numpy.min(Rate))

            maxR=numpy.append(maxR,numpy.max(Rate))

            print "%.2f %.2f %.2f %.2f %.2f %i %i %i %i %i" % (avgD[-1],medD[-1],stdD[-1],minD[-1],maxD[-1],avgR[-1],medR[-1],stdR[-1],minR[-1],maxR[-1])

            numpy.savez("Pi_%s_%s_%s_%s_%s_%s_%s_%s_%.8i_Device%i_%s_%s" % (ValueType,RNG,Alu[Devices[0]],GpuStyle,BlocksBegin,BlocksEnd,ThreadsBegin,ThreadsEnd,Iterations,Devices[0],Metrology,gethostname()),(ExploredBlocks,ExploredThreads,avgD,medD,stdD,minD,maxD,avgR,medR,stdR,minR,maxR))

            ToSave=[ ExploredBlocks,ExploredThreads,avgD,medD,stdD,minD,maxD,avgR,medR,stdR,minR,maxR ]

            numpy.savetxt("Pi_%s_%s_%s_%s_%s_%s_%s_%i_%.8i_Device%i_%s_%s" % (ValueType,RNG,Alu[Devices[0]],GpuStyle,BlocksBegin,BlocksEnd,ThreadsBegin,ThreadsEnd,Iterations,Devices[0],Metrology,gethostname()),numpy.transpose(ToSave),fmt='%i %i %e %e %e %e %e %i %i %i %i %i')

            if Fit:

                FitAndPrint(ExploredJobs,median,Curves)

        # Send MPI exit tag

        for slave in xrange(1,RankSize):

            comm.send('BREAK',dest=slave,tag=11)

    else:

        while True:

            Signal=comm.recv(source=0,tag=11)

            if Signal=='CONTINUE':

                # Receive information from Master

                InputCL=comm.recv(source=0,tag=11)

                print "Parameters retreive from master %s " % InputCL

                # Execute on slave

                OutputCL=MetropolisOpenCL(InputCL)

                print OutputCL

                # Send information to Master

                comm.send(OutputCL,dest=0,tag=11)

                print "Data sent to master"

            else:

                print 'Exit signal from Master'

                break