Command Line Options Reference
This topic shows the command line options with a short description, current deprecated options, and information for working with source files.
Command Line Options
The following table lists all current Intel® DPC++ Compatibility Tool command line options in alphabetical order.
Option |
Description |
|---|---|
--always-use-async-handler |
Use async exception handler when creating new sycl::queue with dpct::create_queue in addition to default dpct::get_default_queue. Default: off. |
--analysis-scope-path=<dir> |
The directory path for the analysis scope of the source tree that needs to be migrated. Default: the value of --in-root. |
--assume-nd-range-dim=<value> |
Provides a hint to the tool on the dimensionality of nd_range to use in generated code. The values are:
|
--build-script-file=<file> |
Specifies the name of generated makefile for migrated file(s). Default name: Makefile.dpct. |
=c_cxx_standard_library |
A set of functions from the C and C++ standard libraries that are allowed to be used in SYCL device code. |
--check-unicode-security |
Enable detection and warnings about Unicode constructs that can be exploited by using bi-directional formatting codes and homoglyphs in identifiers. Default: off. |
--comments |
Insert comments explaining the generated code. Default: off. |
--cuda-include-path=<dir> |
The directory path of the CUDA* header files. |
--custom-helper-name=<name> |
DEPRECATED: Specifies the helper headers folder name and main helper header file name. Default: dpct. |
--enable-ctad |
Use a C++17 class template argument deduction (CTAD) in your generated code. |
--extra-arg=<string> |
Additional argument to append to the migration command line, example: --extra-arg="-I /path/to/header". The options that can be passed this way can be found with the dpct -- -help command. |
--format-range=<value> |
Sets the range of formatting. The values are:
|
--format-style=<value> |
Sets the formatting style. The values are:
Example for the .clang-format file content: BasedOnStyle: LLVM IndentWidth: 4 TabWidth: 4 UseTab: ForIndentation |
--gen-build-script |
Generates makefile for migrated file(s) in -out-root directory. Default: off. |
--help |
Provides a list of dpct specific options. |
--in-root=<dir> |
The directory path for the root of the source tree that needs to be migrated. Only files under this root are migrated. Default:
Details: Any source within the directory specified by --in-root (at any nesting level) may be migrated. Any header file within the directory specified by --in-root (at any nesting level) included by the source or header file, which is being migrated, is also migrated. Files from outside the --in-root directory are considered system files and they will not be migrated even if they are included by any of the program source files. |
--in-root-exclude=<dir|file> |
Excludes the specified directory or file from processing. |
--keep-original-code |
Keeps the original code in the comments of generated SYCL files. Default: off. |
--no-cl-namespace-inline |
DEPRECATED: Do not use cl:: namespace inline. Default: off. This option will be ignored if the replacement option --use-explicit-namespace is used. |
--no-dpcpp-extensions=<value> |
A comma-separated list of extensions not to be used in migrated code. By default, these extensions will be used in migrated code.
|
--no-dry-pattern |
Do not use a Don’t Repeat Yourself (DRY) pattern when functions from the dpct namespace are inserted. Default: off. |
--no-incremental-migration |
Tells the tool to not perform an incremental migration. Default: off (incremental migration happens). |
--optimize-migration |
Generates SYCL code applying more aggressive assumptions that potentially may alter the semantics of your program. Default: off. |
--out-root=<dir> |
The directory path for root of generated files. A directory is created if it does not exist. Default: dpct_output. The relative paths for the generated files are maintained, and the extension is changed as follows:
|
--output-file=<file> |
Redirects the stdout/stderr output to <file> in the output directory specified by the --out-root option. |
--output-verbosity=<value> |
Sets the output verbosity level:
|
-p=<dir> |
The directory path for the compilation database (compile_commands.json). When no path is specified, a search for compile_commands.json is attempted through all parent directories of the first input source file. |
--process-all |
Migrates or copies all files, except hidden, from the --in-root directory to the --out-root directory. The --in-root option should be explicitly specified. Default: off. Details: If --process-all and --in-root options are specified, but no input files are provided, the tool migrates or copies all files, except hidden, from the --in-root directory to the output directory.
--process-all is ignored if input files are provided on the command line. |
--report-file-prefix=<prefix> |
Prefix for the report file names. The full file name will have a suffix derived from the report-type and an extension derived from the report-format. For example: <prefix>.apis.csv or <prefix>.stats.log. If this option is not specified, the report goes to stdout. The report files are created in the directory, specified by -out-root. |
--report-format=<value> |
Format of the reports:
|
--report-only |
Only reports are generated. No SYCL code is generated. Default: off. |
--report-type=<value> |
Specifies the type of report. Values are:
|
--rule-file=<file> |
Specifies the rule file path that contains rules used for migration. |
--stop-on-parse-err |
Stop migration and generation of reports if parsing errors happened. Default: off. |
--suppress-warnings=<value> |
A comma-separated list of migration warnings to suppress. Valid warning IDs range from 1000 to 1100. Hyphen-separated ranges are also allowed. For example: -suppress-warnings=1000-1010,1011. |
--suppress-warnings-all |
Suppresses all migration warnings. Default: off. |
--sycl-named-lambda |
Generates kernels with the kernel name. Default: off. |
--use-custom-helper=<value> |
DEPRECATED: Customize the helper header files for migrated code. The values are:
|
--use-dpcpp-extensions=<value> |
A comma-separated list of extensions to be used in migrated code. By default, these extensions are not used in migrated code. |
--use-experimental-features=<value> |
A comma-separated list of experimental features to be used in migrated code. By default, experimental features will not be used in migrated code. The values are:
|
--use-explicit-namespace=<value> |
Defines the namespaces to use explicitly in generated code. The value is a comma-separated list. Default: dpct, sycl. Possible values are:
|
--usm-level=<value> |
Sets the Unified Shared Memory (USM) level to use in source code generation:
|
--vcxprojfile=<file> |
The file path of vcxproj. |
--version |
Shows the version of the tool. |
--report-file-prefix
--report-type
--report-format
--report-only
Deprecated Command Line Options
The following table lists Intel® DPC++ Compatibility Tool command line options that are currently deprecated.
Deprecated Options |
Suggested Replacement |
|---|---|
--no-cl-namespace-inline |
--use-explicit-namespace |
Source Files
To work with source files use <source0> ... to create paths for your input source files. These paths can be found in the compilation database.
Examples:
Migrate single source file: dpct source.cpp
Migrate single source file with C++11 features: dpct --extra-arg="-std=c++11" source.cpp
Migrate all files available in compilation database: dpct -p=<path to location of compilation database file>
Migrate one file in compilation database: dpct -p=<path to location of compilation database file> source.cpp