PYNQ: PYTHON PRODUCTIVITY

Pynq OpenCL parsing error

Hello, I have created project based on “multiple_kernels” example in Vitis and I have added my own IP something like this:

kernel void vecAdd(  global double *a,                     
                       global double *b,                      
                       global double *c,                       
                       const unsigned int n,
int ide)                  
{                                                            
    //Get our global thread ID                                  
    int id = get_global_id(0);                                
     ide = id;                                                          
    //Make sure we do not go out of bounds                     
    if (id < n)                                                
        c[id] = a[id] + b[id] + id;                                
} 

I have tried to use this .xclbin in Pynq but I’m getting parsing error.
ol = Overlay("/media/sd-mmcblk0p1/multi_krnl.xclbin")

    ValueError                                Traceback (most recent call last)
<ipython-input-3-4b6572ba9a4d> in <module>
----> 1 ol = Overlay("/media/sd-mmcblk0p1/multi_krnl.xclbin")

/usr/lib/python3.7/site-packages/pynq/overlay.py in __init__(self, bitfile_name, dtbo, download, ignore_version, device)
    328         super().__init__(bitfile_name, dtbo, partial=False, device=device)
    329 
--> 330         self.parser = self.device.get_bitfile_metadata(self.bitfile_name)
    331 
    332         self.ip_dict = self.gpio_dict = self.interrupt_controllers = \

/usr/lib/python3.7/site-packages/pynq/pl_server/xrt_device.py in get_bitfile_metadata(self, bitfile_name)
    518     def get_bitfile_metadata(self, bitfile_name):
    519         from .xclbin_parser import XclBin
--> 520         return XclBin(bitfile_name)
    521 
    522     def get_exec_bo(self, size=1024):

/usr/lib/python3.7/site-packages/pynq/pl_server/xclbin_parser.py in __init__(self, filename)
    284     """
    285     def __init__(self, filename):
--> 286         self.ip_dict, self.mem_dict = _xclbin_to_dicts(filename)
    287         self.gpio_dict = {}
    288         self.interrupt_controllers = {}

/usr/lib/python3.7/site-packages/pynq/pl_server/xclbin_parser.py in _xclbin_to_dicts(filename)
    235     ip_dict = _xclxml_to_ip_dict(
    236         sections[xclbin.AXLF_SECTION_KIND.EMBEDDED_METADATA].decode(),
--> 237         xclbin_uuid)
    238     ip_layout = xclbin.ip_layout.from_buffer(
    239         sections[xclbin.AXLF_SECTION_KIND.IP_LAYOUT])

/usr/lib/python3.7/site-packages/pynq/pl_server/xclbin_parser.py in _xclxml_to_ip_dict(raw_xml, xclbin_uuid)
    128                     'description': 'OpenCL Argument Register',
    129                     'type': attrib['type'],
--> 130                     'id': int(attrib['id'])
    131                 }
    132             else:

ValueError: invalid literal for int() with base 10: ''   

Any ideas why it is crashing?
I have created this design with petalinux 2020.2
multi_krnl.zip (1.0 MB)

  • one more question, how can I provide libsensors for Pynq?
    I have tried several times with libsensors in petalinux, but still same error
    /usr/lib/python3.7/site-packages/pynq/pmbus.py:230: UserWarning: Could not initialise libsensors library
    warnings.warn(“Could not initialise libsensors library”)

Thanks :slight_smile: