Step 4: Running Hardware Emulation

Now that Software Emulation is complete, you can run Hardware Emulation. To do this without changing the makefile, run the following command:

make all REPORT=estimate TARGETS=hw_emu DEVICES=xilinx:kcu1500:dynamic

By defining the TARGETS this way, it passes the value and overwrites the default that was set in the makefile that we saw in Step 2.

Note: Like in Lab 1, Hardware Emulation takes longer to compile than the Software Emulation.

Next, you can re-run the application. You do not need to regenerate emconfig.json since the device information has not changed; however, the emulation needs to be set for Hardware Emulation. Re-run the application with the following command:

make check TARGETS=hw_emu DEVICES=xilinx:kcu1500:dynamic

Note: The makefile sets the enviornment variable to hw_emu.

The output should be similar to the Software Emulation with the following output.

[sdaccel@localhost vadd]$ make check TARGETS=hw_emu DEVICES=xilinx_kcu1500_dynamic_5_0
/<install location>/SDx/2017.4/bin/emconfigutil --platform xilinx_kcu1500_dynamic_5_0 --nd 1
...
INFO: [ConfigUtil 60-895]    Target platform: <install location>/SDx/2017.4/platforms/xilinx_kcu1500_dynamic_5_0/xilinx_kcu1500_dynamic_5_0.xpfm
emulation configuration file `emconfig.json` is created in current working directory 
...
platform Name: Intel(R) OpenCL
Vendor Name : Xilinx
platform Name: Xilinx
Vendor Name : Xilinx
Found Platform
XCLBIN File Name: krnl_vadd
INFO: Importing xclbin/krnl_vadd.sw_emu.xilinx_kcu1500_dynamic.xclbin
Loading: 'xclbin/krnl_vadd.sw_emu.xilinx_kcu1500_dynamic.xclbin'
Result Match: i = 0 CPU result = 0 Krnl Result = 0
Result Match: i = 1 CPU result = 3 Krnl Result = 3
Result Match: i = 2 CPU result = 6 Krnl Result = 6
Result Match: i = 3 CPU result = 9 Krnl Result = 9
Result Match: i = 4 CPU result = 12 Krnl Result = 12
Result Match: i = 5 CPU result = 15 Krnl Result = 15
...
Result Match: i = 1018 CPU result = 3054 Krnl Result = 3054
Result Match: i = 1019 CPU result = 3057 Krnl Result = 3057
Result Match: i = 1020 CPU result = 3060 Krnl Result = 3060
Result Match: i = 1021 CPU result = 3063 Krnl Result = 3063
Result Match: i = 1022 CPU result = 3066 Krnl Result = 3066
Result Match: i = 1023 CPU result = 3069 Krnl Result = 3069
INFO: [SDx-EM 22] [Wall clock time: 10:42, Emulation time: 0.010001 ms] Data transfer between kernel(s) and global memory(s)
BANK0          RD = 8.000 KB               WR = 4.000 KB        
BANK1          RD = 0.000 KB               WR = 0.000 KB        
BANK2          RD = 0.000 KB               WR = 0.000 KB        
BANK3          RD = 0.000 KB               WR = 0.000 KB   
TEST PASSED

To view the profile summary and timeline trace, run the following commands to convert them for the SDx IDE to read and view the updated information below:

sdx_analyze profile sdaccel_profile_summary.csv
sdx_analyze trace sdaccel_timeline_trace.csv

For the Profile Summary you should get something similar in the following figure.