--hls Options - 2024.1 English

--hls.clock

--hls.clock <arg>

Specifies a frequency in Hertz at which the listed kernel(s) should be compiled by Vitis HLS.

Where <arg> is specified as: <frequency_in_Hz>:<cu_name1>,<cu_name2>,..,<cu_nameN>

• <frequency_in_Hz>: Defines the kernel frequency specified in Hz.
• <cu_name1>,<cu_name2>,...: Defines a list of kernels or kernel instances (CUs) to be compiled at the specified target frequency.

For example:

v++ -c --hls.clock 300000000:mmult,mmadd --hls.clock 100000000:fifo_1

[hls]
clock=300000000:mmult,mmadd
clock=100000000:fifo_1

--hls.export_mode

--hls.export_mode <file_type>:<file_path>

Specifies the RTL export mode for Vitis HLS and the path and name of the exported file. As a v++ compiler option, the only supported <file_type> is XO.

For example:

v++ --hls.export_mode xo:./kernel.xo

[hls]
export_mode=xo:./kernel.xo

--hls.export_project

--hls.export_project <arg>

Specifies a directory where the Vitis HLS project setup script is exported.

For example:

v++ --hls.export_project ./hls_export

[hls]
export_project=./hls_export

--hls.jobs

--hls.jobs <arg>

Specifies the number of jobs for launching HLS runs.

This option specifies the number of parallel jobs Vitis HLS uses to synthesize the RTL kernel code. Increasing the number of jobs allows the tool to spawn more parallel processes and complete faster.

For example:

v++ --hls.jobs 4

[hls]
jobs=4

--hls.lsf

--hls.lsf <arg>

Specifies a bsub command to submit a job to LSF for HLS runs.

Specifies the bsub command line as a string to pass to an LSF cluster. This option is required to use the IBM Platform Load Sharing Facility (LSF) for Vitis HLS synthesis.

For example:

v++ --compile --hls.lsf '{bsub -R \"select[type=X86_64]\" -N -q medium}'

[hls]
lsf='{bsub...

--hls.post_tcl

--hls.post_tcl <arg>

Specifies a Tcl file containing Tcl commands for vitis_hls to source after csynth_design.

For example:

v++ --hls.post_tcl ./runPost.tcl

[hls]
post_tcl=./runPost.tcl

--hls.pre_tcl

--hls.pre_tcl <arg>

Specifies a Tcl file containing Tcl commands for vitis_hls to source before running csynth_design.

For example:

v++ --hls.pre_tcl ./runPre.tcl

config_interface -m_axi_auto_max_ports=1
config_interface -m_axi_max_bitwidth 512

[hls]
pre_tcl=./runPre.tcl