mwrnd

"""
Purpose: Generate permutations of command-line calls to
         tensorflow/benchmark's tf_cnn_benchmarks.py script.

Usage:  0) place this file in /benchmarks/scripts/tf_cnn_benchmarks
        1) python3 cmds.py > benchmarkcommands
        2) bash -x <benchmarkcommands 2>&1 | tee benchmarklog

Notes: - XLA and ROCM are options specific to AMD's ROCm
       - the associated parse.py will parse log output into summary form

mwrnd

sudo lspci -tv | grep -i "PLX\|Nvidia"

           +-01.0-[01-04]----00.0-[02-04]--+-08.0-[03]----00.0  NVIDIA Corporation GK210GL [Tesla K80]
           |                               \-10.0-[04]----00.0  NVIDIA Corporation GK210GL [Tesla K80]




sudo lspci -vvvvxxxxnn | grep -i "PLX\|Nvidia\|LnkSta:"

mwrnd

sudo mst start
sudo mst status
sudo flint -d /dev/mst/mt4119_pciconf0 q
sudo ./mlxup --version
sudo ./mlxup -d /dev/mst/mt4119_pciconf0

sudo mlxreg -d /dev/mst/mt4119_pciconf0 --show_regs | cut -d " " -f 1 | grep "^[A-Z]" | grep -v "Available" | xargs -t -L 1 -I{} sudo mlxreg -d /dev/mst/mt4119_pciconf0 --show_reg {}

mwrnd

sudo mst start
sudo mst status
sudo flint -d /dev/mst/mt4119_pciconf0 q
sudo ./mlxup --version
sudo ./mlxup -d /dev/mst/mt4119_pciconf0

sudo mlxreg -d /dev/mst/mt4119_pciconf0 --show_regs | cut -d " " -f 1 | grep "^[A-Z]" | grep -v "Available" | xargs -t -L 1 -I{} sudo mlxreg -d /dev/mst/mt4119_pciconf0 --show_reg {}

mwrnd

01:00.0 PCI bridge [0604]: Mellanox Technologies MT28800 Family [ConnectX-5 PCIe Bridge] [15b3:1974] (prog-if 00 [Normal decode])
	Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
	Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
	Latency: 0, Cache Line Size: 64 bytes
	Bus: primary=01, secondary=02, subordinate=04, sec-latency=0
	I/O behind bridge: 0000f000-00000fff [disabled]
	Memory behind bridge: fff00000-000fffff [disabled]
	Prefetchable memory behind bridge: 00000000a0000000-00000000a7ffffff [size=128M]
	Secondary status: 66MHz- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- <SERR- <PERR-
	BridgeCtl: Parity- SERR+ NoISA- VGA- VGA16- MAbort- >Reset- FastB2B-

mwrnd

/* Simple Linux Kernel Module that demonstrates
   reads from a /dev/ device created by another
   Kernel Module are NOT possible.
   
   /dev/xdma0_c2h_0 requires regular filesystem reads/writes

make
sudo insmod xdma_mod_test.ko
sudo rmmod  xdma_mod_test.ko
dmesg