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Hello,</div>
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While reviewing AMS software suite for installation, I noticed this remark (<a href="https://www.scm.com/doc/Installation/Additional_Information_and_Known_Issues.html#gpfs-file-system" id="LPlnk">https://www.scm.com/doc/Installation/Additional_Information_and_Known_Issues.html#gpfs-file-system</a>):</div>
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GPFS file system<a class="headerlink" href="https://www.scm.com/doc/Installation/Additional_Information_and_Known_Issues.html#gpfs-file-system" title="Permalink to this headline" style="box-sizing:border-box;color:rgb(255, 130, 19);cursor:pointer;display:inline-block;font-weight:normal;line-height:1;font-size:14px;text-rendering:auto;visibility:hidden"></a></h2>
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Starting with AMS2019, the KF sub-system (used for handling binary files such as ADF’s TAPE* files) has been rewritten to use memory-mapped files. The mmap() system call implementation is file-system dependent and, unfortunately, it is not equally efficient
 in different file systems. The memory-mapped files implementation in GPFS is extremely inefficient. Therefore the users should avoid using a GPFS for scratch files</p>
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Is this claim true? Are there caveats to this statement, if true?</div>
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<span style="font-family:Arial,sans-serif; font-size:13.3333px">Thanks,</span><br>
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<b><span style="margin:0px; font-size:10pt; font-family:Arial,sans-serif; color:black">Oluwasijibomi (Siji) Saula</span></b></p>
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