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Do you have more information on the compression ratio?

I have already mentioned the issue in the xilinx community, please refer to this link：
https://forums.xilinx.com/t5/SDAccel/Cannot-find-the-correct-device-in-emulation-mode-using-JNI/m-p/885044/highlight/true#M2423

@heeran-xilinx @fengx-xilinx Can you help me solve this issue? Thanks in advance.

Best Regards.
yancoo

Hi,

I'm using the LZ4 compression core for my custom logic.
However, after running the bitstream generation with tcl, it is hard to reconfigure the ports due to the unclear Verilog code generated from the high-level synthesis.
So, I want to open the project file right before the bitstream generation and add my code.
Is there any other way to add my code and generate the bitstream file?

Thanks in advance.
Best regards,

is WebP buildable with any of the current (1.4.0+) fpga developer ami's?

well, i am using vitis running a networking example,and there shows error below

Makefile:158: /home/fyf/Desktop/common/includes/opencl/opencl.mk: No such file or directory
Makefile:159: /home/fyf/Desktop/common/includes/xcl2/xcl2.mk: No such file or directory

can i use the code in this repository to solve it?

Hello everyone,

I am trying to build the GZip example from Xilinx Applications

I was able to successfuly generate the awsxclbin following these steps but I encountered an issue.

My executable will only work one out of several trials resulting in a segfault when failing with output:

root:/home/centos/Git/Applications/GZip# ./xil_gzip -i xocc_gZip_app.hw.xilinx_aws-vu9p-f1-04261818_dynamic_5_0.log
xclProbe found 1 FPGA slots with xocl driver running
platform Name: Xilinx
Vendor Name : Xilinx
Found Platform
Found Device=xilinx_aws-vu9p-f1-04261818_dynamic_5_0
XCLBIN File Name: gZip_app
INFO: Importing ./gZip_app.hw.xilinx_aws-vu9p-f1-04261818_dynamic_5_0.awsxclbin
Loading: './gZip_app.hw.xilinx_aws-vu9p-f1-04261818_dynamic_5_0.awsxclbin'
This AFI already loaded. Skip reload!
Successfully skipped reloading of local image.

KT(MBps)	GZip_CR		STATUS		File Size(MB)		File Name

Segmentation fault

I used gdb to debug it and found where the segmentation fault was coming from:

Program received signal SIGSEGV, Segmentation fault.
0x00007ffff6697511 in xocl::device::allocate_buffer_object(xocl::memory*) () from /opt/xilinx/xrt/lib/libxilinxopencl.so

I am kind of lost as to why this would be happening.

Does anyone have an idea ?

I am using an f1.2xlarge instance from aws.

Best regards.

The compilation scripts for WebP (xocc.sh, Makefile.xocc) reference a lot of Xilinx internal paths. In their current states, the scripts are unusable and require significant modification on the user-side just to get this app up-and-running. Users of your WebP accelerator would greatly appreciate if you could update the scripts and remove the internal references. Thank you!

It makes sense that the execution does not work when no AWSXCLBIN nor XCLBIN is found, but, in my case, this situation causes a segfault on the call to cl::Program, which is difficult to diagnose.

Maybe find_binary_file in xcl2.cpp should at least specify whether we found an .awsxclbin, an .xclbin, or neither and at least warn that finding neither may cause errors?

Testing this code I tried to feed the generated SDAccel_Kernel.tar file into the app and it generates an error

./xil_gzip -i Developer_SDAccel_Kernel.tar

result:
ERROR: Failed to sync 652124160/-5 bytes
terminate called after throwing an instance of 'xrt::error'
what(): event 3 never submitted
Aborted

Is the sample code constrained in max size?