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<p>Apologies. more googling shows it is returned by fi_getname in the addrlen field.</p>
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<p>JB<br>
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<div id="divRplyFwdMsg" dir="ltr"><font style="font-size:11pt" face="Calibri, sans-serif" color="#000000"><b>From:</b> Biddiscombe, John A.<br>
<b>Sent:</b> 03 March 2023 11:59<br>
<b>To:</b> libfabric-users@lists.openfabrics.org<br>
<b>Subject:</b> address size</font>
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<p>when using native address formats, I have the following hardcoded into my stuff</p>
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<div>#ifdef HAVE_LIBFABRIC_GNI<br>
#define HAVE_LIBFABRIC_LOCALITY_SIZE 48<br>
#endif<br>
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#ifdef HAVE_LIBFABRIC_CXI<br>
#define HAVE_LIBFABRIC_LOCALITY_SIZE 4<br>
#endif<br>
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#if defined(HAVE_LIBFABRIC_VERBS) || defined(HAVE_LIBFABRIC_TCP) || \<br>
defined(HAVE_LIBFABRIC_SOCKETS) || defined(HAVE_LIBFABRIC_PSM2)<br>
#define HAVE_LIBFABRIC_LOCALITY_SIZE 16<br>
#define HAVE_LIBFABRIC_LOCALITY_SOCKADDR<br>
#endif<br>
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<p>I want to use amazon EFA, and have no idea how large an address struct is with FI_ADDR_EFA</p>
<p>What is the correct way to find this info so that addresses can be safely copied around when compiling against different providers?</p>
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<p>Thanks</p>
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<p>JB</p>
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