gem5/util/multi/Makefile
Gabor Dozsa fc5bf6713f dev: add support for multi gem5 runs
Multi gem5 is an extension to gem5 to enable parallel simulation of a
distributed system (e.g. simulation of a pool of machines
connected by Ethernet links). A multi gem5 run consists of seperate gem5
processes running in parallel (potentially on different hosts/slots on
a cluster). Each gem5 process executes the simulation of a component of the
simulated distributed system (e.g. a multi-core board with an Ethernet NIC).

The patch implements the "distributed" Ethernet link device
(dev/src/multi_etherlink.[hh.cc]). This device will send/receive
(simulated) Ethernet packets to/from peer gem5 processes. The interface
to talk to the peer gem5 processes is defined in dev/src/multi_iface.hh and
in tcp_iface.hh.

There is also a central message server process (util/multi/tcp_server.[hh,cc])
which acts like an Ethernet switch and transfers messages among the gem5 peers.

A multi gem5 simulations can be kicked off by the util/multi/gem5-multi.sh
wrapper script.

Checkpoints are supported by multi-gem5. The checkpoint must be
initiated by a single gem5 process. E.g., the gem5 process with rank 0
can take a checkpoint from the bootscript just before it invokes
'mpirun' to launch an MPI test. The message server process will notify
all the other peer gem5 processes and make them take a checkpoint, too
(after completing a global synchronisation to ensure that there are no
inflight messages among gem5).
2015-07-15 19:53:50 -05:00

63 lines
2.5 KiB
Makefile

#
# Copyright (c) 2015 ARM Limited
# All rights reserved
#
# The license below extends only to copyright in the software and shall
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# property including but not limited to intellectual property relating
# to a hardware implementation of the functionality of the software
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# unmodified and in its entirety in all distributions of the software,
# modified or unmodified, in source code or in binary form.
#
# 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;
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# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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# Authors: Gabor Dozsa
CXX= g++
DEBUG= -DDEBUG
M5_ARCH?= ARM
M5_DIR?= ../..
vpath % $(M5_DIR)/build/$(M5_ARCH)/dev
INCDIRS= -I. -I$(M5_DIR)/build/$(M5_ARCH) -I$(M5_DIR)/ext
CCFLAGS= -g -Wall -O3 $(DEBUG) -std=c++11 -MMD $(INCDIRS)
default: tcp_server
clean:
@rm -f tcp_server *.o *.d *~
tcp_server: tcp_server.o multi_packet.o
$(CXX) $(LFLAGS) -o $@ $^
%.o: %.cc
@echo '$(CXX) $(CCFLAGS) -c $(notdir $<) -o $@'
@$(CXX) $(CCFLAGS) -c $< -o $@
-include *.d