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| author | Gabor Dozsa <gabor.dozsa@arm.com> | 2015-07-15 19:53:50 -0500 |
|---|---|---|
| committer | Gabor Dozsa <gabor.dozsa@arm.com> | 2015-07-15 19:53:50 -0500 |
| commit | fc5bf6713f191047e07f33a788d099b2bbd9faf4 (patch) | |
| tree | a6af111bc06faaf3bd98a6b6ede0af6b6ff0ab2f /src/dev/SConscript | |
| parent | 541066091949dc91e07874c262b0b5b740718d01 (diff) | |
| download | gem5-fc5bf6713f191047e07f33a788d099b2bbd9faf4.tar.xz | |
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).
Diffstat (limited to 'src/dev/SConscript')
| -rw-r--r-- | src/dev/SConscript | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/src/dev/SConscript b/src/dev/SConscript index 416e5052f..3936210a6 100644 --- a/src/dev/SConscript +++ b/src/dev/SConscript @@ -60,6 +60,10 @@ Source('etherdevice.cc') Source('etherdump.cc') Source('etherint.cc') Source('etherlink.cc') +Source('multi_packet.cc') +Source('multi_iface.cc') +Source('multi_etherlink.cc') +Source('tcp_iface.cc') Source('etherpkt.cc') Source('ethertap.cc') Source('i2cbus.cc') @@ -85,6 +89,8 @@ DebugFlag('DiskImageWrite') DebugFlag('DMA') DebugFlag('DMACopyEngine') DebugFlag('Ethernet') +DebugFlag('MultiEthernet') +DebugFlag('MultiEthernetPkt') DebugFlag('EthernetCksum') DebugFlag('EthernetDMA') DebugFlag('EthernetData') |