{"id":171309,"date":"2023-06-05T07:06:07","date_gmt":"2023-06-05T07:06:07","guid":{"rendered":"\/knowledge\/forums\/topic\/how-can-i-use-the-ansys-fluent-udf-macro-define_rw_file-with-the-serial-version-of-fluent\/"},"modified":"2023-07-31T12:30:18","modified_gmt":"2023-07-31T12:30:18","slug":"how-can-i-use-the-ansys-fluent-udf-macro-define_rw_file-with-the-serial-version-of-fluent","status":"publish","type":"topic","link":"https:\/\/innovationspace.ansys.com\/knowledge\/forums\/topic\/how-can-i-use-the-ansys-fluent-udf-macro-define_rw_file-with-the-serial-version-of-fluent\/","title":{"rendered":"How can I use the ANSYS Fluent UDF Macro DEFINE_RW_FILE with the serial version of Fluent?"},"content":{"rendered":"<p>Starting with ANSYS Fluent 18.2 you must parallelize your UDF (user-defined function) also when using the serial version. Most macros are updated that they can be used with one or multiple compute nodes without special considerations but for DEFINE_RW_FILE you must be careful to do a proper parallelization. See also the Fluent 18.2 Migration Manual and Fluent 18.2 Customization Manual, chapter \u201cParallelizing Your Serial UDF\u201d.<\/p>\n","protected":false},"template":"","class_list":["post-171309","topic","type-topic","status-publish","hentry","topic-tag-18-2","topic-tag-fluent","topic-tag-fluid-dynamics","topic-tag-general-fluent","topic-tag-parallel","topic-tag-udf-scripting-act-pyansys"],"aioseo_notices":[],"acf":[],"custom_fields":[{"0":{"_wp_page_template":["default"],"_bbp_last_active_time":["2\/6\/2023 20:20"],"_bbp_forum_id":["27796"],"_bbp_author_ip":["209.182.204.162"],"_btv_view_count":["1574"],"siebel_km_number":["2050900"],"product_version":["18.2"],"km_published_date":["2017-08-03T00:00:00.000Z"],"family":["Fluid Dynamics"],"application_name":["FLUENT"]},"test":"articlesansys-com"}],"_links":{"self":[{"href":"https:\/\/innovationspace.ansys.com\/knowledge\/wp-json\/wp\/v2\/topics\/171309","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/innovationspace.ansys.com\/knowledge\/wp-json\/wp\/v2\/topics"}],"about":[{"href":"https:\/\/innovationspace.ansys.com\/knowledge\/wp-json\/wp\/v2\/types\/topic"}],"version-history":[{"count":0,"href":"https:\/\/innovationspace.ansys.com\/knowledge\/wp-json\/wp\/v2\/topics\/171309\/revisions"}],"wp:attachment":[{"href":"https:\/\/innovationspace.ansys.com\/knowledge\/wp-json\/wp\/v2\/media?parent=171309"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}