[Arch] Added Fixed Architecture Sizes for Koios and Titan

For the Koios and Titan benchmark suites, went through each circuit and
found their minimum device size created after packing. The circuits were
then categorized into different device families based on their minimum
device size and their limiting block utilization. The device families
were chosen to be around 1.5x larger than the previous.

Put these fixed device families into the architecture files for these
benchmarks.

Author: AlexandreSinger

vtr_flow/arch/COFFE_22nm/k6FracN10LB_mem20K_complexDSP_customSB_22nm.xml

@@ -744,6 +744,49 @@
       <col type="dsp_top"  startx="176"  starty="1"  priority="20"/>
     </fixed_layout> 
     -->
+    <!--
+        This architecture is commonly used for the Koios Benchmark suite. Below
+        are a set of fixed layouts which were found to work well for these
+        benchmarks. They were found by finding the minimum device size for each
+        benchmark and categorizing the benchmarks into the different fixed
+        layouts. Each fixed layout was chosen to be around 1.5x larger than the
+        previous.
+    -->
+    <fixed_layout name="koios_extra_small" width="90" height="90">
+      <perimeter type="io" priority="101"/>
+      <corners type="EMPTY" priority="102"/>
+      <fill type="clb" priority="10"/>
+      <col type="dsp_top" startx="6" starty="1" repeatx="16" priority="20"/>
+      <col type="memory" startx="2" starty="1" repeatx="16" priority="20"/>
+    </fixed_layout>
+    <fixed_layout name="koios_small" width="140" height="140">
+      <perimeter type="io" priority="101"/>
+      <corners type="EMPTY" priority="102"/>
+      <fill type="clb" priority="10"/>
+      <col type="dsp_top" startx="6" starty="1" repeatx="16" priority="20"/>
+      <col type="memory" startx="2" starty="1" repeatx="16" priority="20"/>
+    </fixed_layout>
+    <fixed_layout name="koios_medium" width="225" height="225">
+      <perimeter type="io" priority="101"/>
+      <corners type="EMPTY" priority="102"/>
+      <fill type="clb" priority="10"/>
+      <col type="dsp_top" startx="6" starty="1" repeatx="16" priority="20"/>
+      <col type="memory" startx="2" starty="1" repeatx="16" priority="20"/>
+    </fixed_layout>
+    <fixed_layout name="koios_large" width="350" height="350">
+      <perimeter type="io" priority="101"/>
+      <corners type="EMPTY" priority="102"/>
+      <fill type="clb" priority="10"/>
+      <col type="dsp_top" startx="6" starty="1" repeatx="16" priority="20"/>
+      <col type="memory" startx="2" starty="1" repeatx="16" priority="20"/>
+    </fixed_layout>
+    <fixed_layout name="koios_extra_large" width="550" height="550">
+      <perimeter type="io" priority="101"/>
+      <corners type="EMPTY" priority="102"/>
+      <fill type="clb" priority="10"/>
+      <col type="dsp_top" startx="6" starty="1" repeatx="16" priority="20"/>
+      <col type="memory" startx="2" starty="1" repeatx="16" priority="20"/>
+    </fixed_layout>
   </layout>
   <device>
     <sizing R_minW_nmos="13090" R_minW_pmos="19086.83"/>