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Xilinx Alveo U280

TDB

Intel Stratix 10

CL_INVALID_PROGRAM_EXECUTABLE with fast emulation

When using the fast emulator along with host code that was previously tested with the legacy emulator and/or hardware execution, you may encounter a problem with during execution that corresponds to the OpenCL error code CL_INVALID_PROGRAM_EXECUTABLE. To fix this issue, your host code needs to invoke clBuildProgram (C API) or program.build() (C++ API). This invocation is required for any normal OpenCL code, but with legacy emulation and hardware execution, it was not required and could be skipped.

FPGA programmed with bitstreams built with different SDK versions in the same session

Error message during bitstream programming from host code or with aocl program

FAILED to read auto-discovery string at byte 2: Expected version is 19, found 20
Error: The currently programmed/flashed design is no longer supported in this release. Please recompile the design with the present version of the SDK and re-program/flash the board.
acl_hal_mmd.c:1460:assert failure: Failed to initialize kernel interfacemain: acl_hal_mmd.c:1460: l_try_device: Assertion `0' failed.

This or similar error messages come up when invoking host code or aocl commands after a bitstream that was built with an earlier SDK version was configured. Workaround:

  • Load the latest intelFPGA_pro module (e.g. 19.3.0)

  • Configure the target bitstream (e.g. built with 19.2.0 SDK) using aocl program or your OpenCL host code

  • Optionally [reload the target intelFPGA_pro module that was used when building the bitstream]

LOCALE settings forwarded from your computer

Error message in quartus_sh_compile.log

Internal Error: Sub-system: CFG_INI, File: /quartus/ccl/cfg_ini/cfg_ini_reader.cpp, Line: 1530
Couldn't parse ini setting qspc_nldm_max_step_size=10.0 as a floating point value
Stack Trace:
     0xb4fe: err_report_internal_error(char const*, char const*, char const*, int) + 0x1a (ccl_err)
    0x17b45: cfg_get_double_value(std::string const&, double) + 0xe4 (ccl_cfg_ini)
    0x8f788: CFG_INI_DOUBLE::refresh() + 0x48 (tsm_qspc)
...
Error (23035): Tcl error: couldn't open "top.fit.rpt": no such file or directory
    while executing
"open $report"
    (procedure "fetch_pseudo_panel" line 3)
    invoked from within
"fetch_pseudo_panel $report "Found \[0-9\]* clocks" {1 0} 2"
    (procedure "fetch_clock_periods" line 6)
    invoked from within
"fetch_clock_periods $report"
    (procedure "fetch_clock" line 2)
    invoked from within
"fetch_clock "$revision_name.fit.rpt" $clkname"
    (procedure "get_fmax_from_report" line 8)
    invoked from within
"get_fmax_from_report $k_clk_name 1 $recovery_multicycle $iteration"
    (procedure "get_kernel_clks_and_fmax" line 5)
    invoked from within
"get_kernel_clks_and_fmax $k_clk_name $k_clk2x_name $recovery_multicycle $iteration"
    (file "/cm/shared/opt/intelFPGA_pro/19.4.0/hld/ip/board/bsp/adjust_plls.tcl" line 815)
    invoked from within
"source "$sdk_root/ip/board/bsp/adjust_plls.tcl""
    (file "scripts/post_flow_pr.tcl" line 59)
Error (23031): Evaluation of Tcl script scripts/post_flow_pr.tcl unsuccessful
...
Error: Quartus Fitter has failed! Breaking execution...
Error (23035): Tcl error: 
    while executing
"qexec "quartus_cdb -t scripts/post_flow_pr.tcl \"$top_path\"""
    invoked from within
"if {$revision_name eq "top"} {

  post_message "Compiling top revision..."

  # Load OpenCL BSP utility functions
  source "$sdk_root/ip/board/bsp/ope..."
    (file "compile_script.tcl" line 40)
Error (23031): Evaluation of Tcl script compile_script.tcl unsuccessful
Error: Quartus Prime Compiler Database Interface was unsuccessful. 3 errors, 0 warnings
    Error: Peak virtual memory: 1021 megabytes
    Error: Processing ended: Mon Mar 30 14:47:15 2020
    Error: Elapsed time: 03:06:43
    Error: System process ID: 21428

The root cause is outlined in the first message of the above export from quartus_sh_compile.log: parsing of a number as floating point failed. This can be caused by locale settings that are transferred from the computer you connect with to Noctua 2. After connecting to Noctua 2, check your locale settings with locale, and possibly change them with export LC_NUMERIC="en_US.UTF-8".

[tester@fe-1 matrix_mult]$ locale
...
LC_NUMERIC="de_DE.UTF-8" // can cause above error
[tester@fe-1 matrix_mult]$ export LC_NUMERIC="en_US.UTF-8"
[tester@fe-1 matrix_mult]$ locale
...
LC_NUMERIC="en_US.UTF-8" // known to work
...

ERROR: UNRECOGNIZED ERROR CODE (-1001)

This error might occur if the default system gcc (version 4.8) is used, see required gcc versions.

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