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<helpdocument version="1.0">
<meta>
<topic id="opencloptions" indexer="include" status="PUBLISH">
<title id="tit" xml-lang="en-US">OpenCL Options</title>
<filename>/text/scalc/05/OpenCL_options.xhp</filename>
</topic>
</meta>
<body>
<bookmark xml-lang="en-US" branch="index" id="bm_id3146799"><bookmark_value>OpenCl;options</bookmark_value>
</bookmark>
<bookmark xml-lang="en-US" branch="hid/modules/scalc/ui/formulacalculationoptions/FormulaCalculationOptions" id="bm_id2745673" localize="false"/>
<paragraph role="heading" id="hd_id1502121" xml-lang="en-US" level="1" l10n="NEW"><variable id="empty_cells"><link href="text/scalc/05/OpenCL_options.xhp">OpenCL Options</link>
</variable></paragraph>
<paragraph role="note" id="par_id5293740" xml-lang="en-US" l10n="NEW">This page is under construction</paragraph>
<paragraph role="paragraph" id="par_id2733542" xml-lang="en-US" l10n="NEW">OpenCL: the open standard for parallel programming of heterogeneous systems.</paragraph>
<section id="howtoget">
<paragraph role="paragraph" id="par_id2752992" xml-lang="en-US" l10n="U" oldref="26">
<variable id="sam01">Menu <emph>Tools - Options - LibreOffice Calc - Formula</emph>, and in section <emph>Detailed Calculation Settings</emph> press <emph>Details...</emph> button</variable>
</paragraph>
</section>
<paragraph role="paragraph" id="par_id8266853" xml-lang="en-US" l10n="NEW">
OpenCL™ is the first open, royalty-free standard for cross-platform, parallel programming of modern processors found in personal computers, servers and handheld/embedded devices. OpenCL (Open Computing Language) greatly improves speed and responsiveness for a wide spectrum of applications in numerous market categories from gaming and entertainment to scientific and medical software</paragraph>
<paragraph role="note" id="par_id5293741" xml-lang="en-US" l10n="NEW">for more information on OpenCL, visit <link href="http://www.khronos.org/opencl/">the OpenCL site</link></paragraph>
<paragraph role="heading" id="par_id4238715" xml-lang="en-US" level="2">Contents to Numbers</paragraph>
<paragraph role="heading" id="par_id8277230" xml-lang="en-US" l10n="NEW" level="3">Conversion from text to number</paragraph>
<paragraph role="paragraph" id="par_id396740" xml-lang="en-US" l10n="NEW">How to treat text when encountered as operand in an arithmetic operation or as argument to a function that expects a number instead. Unambiguous conversion is possible for integer numbers including exponents and ISO 8601 dates and times in their extended formats with separators. Fractional numeric values with decimal separators or dates other than ISO 8601 are locale dependent. Note that in locale dependent conversions the resulting numeric value may differ between locales!</paragraph>
<paragraph role="paragraph" id="par_id4086428" xml-lang="en-US" l10n="NEW"><emph>Generate #VALUE! error:</emph> Text found where numeric data is expected will generate #VALUE! error. Example: <item type="input">"123.45"</item> will generate a #VALUE! error, while <item type="input">123.45</item> not.</paragraph>
<paragraph role="paragraph" id="par_id9024628" xml-lang="en-US" l10n="NEW"><emph>Treat as zero:</emph> Any text found where numeric data is expected will be considered as a number of value zero. Example: <item type="input">"123.45"</item> will map to zero, while <item type="input">123.45</item> not.</paragraph>
<paragraph role="paragraph" id="par_id3067110" xml-lang="en-US" l10n="NEW"><emph>Convert only if unambiguous:</emph> If the text represents a valid and unambiguous numeric value, convert it. Example: <item type="input">"+55.21.9.8822.8813"</item> will map to zero, because the numbers don't represent a numeric value.</paragraph>
<paragraph role="paragraph" id="par_id8841822" xml-lang="en-US" l10n="NEW"><emph>Convert also locale dependent:</emph> convert values valid in the locale representation. Example: <item type="input">"123,45"</item> is a valid number in some locales because the comma is the decimal separator there.</paragraph>
<paragraph role="heading" id="par_id4077578" xml-lang="en-US" l10n="NEW" level="3">Treat empty string as zero</paragraph>
<paragraph role="paragraph" id="par_id9094515" xml-lang="en-US" l10n="NEW">This option determines how an empty string is treated when used in arithmetic operations. If you have set "Conversion from text to number" to either "Generate #VALUE! error" or "Treat as zero", you cannot choose (here) if conversion of an empty string to a number will generate an error or if it will treat empty strings as zero. Otherwise this option determines how empty strings are treated.</paragraph>
<paragraph role="heading" id="par_id3859675" xml-lang="en-US" l10n="NEW" level="3">Reference syntax for string reference</paragraph>
<paragraph role="paragraph" id="par_id402233" xml-lang="en-US" l10n="NEW">Formula syntax to use when parsing references given in string parameters. This affects built-in functions such as INDIRECT that takes a reference as a string value.</paragraph>
<paragraph role="paragraph" id="par_id1623889" xml-lang="en-US" l10n="NEW"><emph>Use formula syntax:</emph></paragraph>
<paragraph role="paragraph" id="par_id7781914" xml-lang="en-US" l10n="NEW"><emph>Calc A1:</emph></paragraph>
<paragraph role="paragraph" id="par_id300912" xml-lang="en-US" l10n="NEW"><emph>Excel A1:</emph></paragraph>
<paragraph role="paragraph" id="par_id9534592" xml-lang="en-US" l10n="NEW"><emph>Excel R1C1:</emph></paragraph>
<paragraph role="heading" id="par_id4969328" xml-lang="en-US" l10n="NEW" level="2">OpenCL Settings</paragraph>
<paragraph role="heading" id="par_id9635914" xml-lang="en-US" l10n="NEW" level="3">Use OpenCL only for a subset of operations</paragraph>
<paragraph role="paragraph" id="par_id2476577" xml-lang="en-US" l10n="NEW">Use OpenCL only for some of the operations that spreadsheet formulas are translated to.</paragraph>
<paragraph role="heading" id="par_id4217047" xml-lang="en-US" l10n="NEW" level="3">Minimum data size for OpenCL use:</paragraph>
<paragraph role="paragraph" id="par_id2629474" xml-lang="en-US" l10n="NEW">An approximate lower limit on the number of data cells a spreadsheet formula should use for OpenCL to be considered.</paragraph>
<paragraph role="heading" id="par_id8069704" xml-lang="en-US" l10n="NEW" level="3">Subset of OpCodes for which OpenCL is used</paragraph>
<paragraph role="paragraph" id="par_id4524674" xml-lang="en-US" l10n="NEW">The list of operators and function opcodes for which to use OpenCL. If a formula contains only these operators and functions, it might be calculated using OpenCL.</paragraph>
</body>
</helpdocument>
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