added fig arch

data/ipedirectgma/latency-hist.py

@@ -1,6 +1,8 @@
 import sys
 import numpy as np
 import matplotlib.pyplot as plt
+from mpl_toolkits.axes_grid.axislines import Subplot
+
 
 c = np.loadtxt('ipedirectgma.1024.cpu.txt')
 g = np.loadtxt('ipedirectgma.1024.gpu.txt')
@@ -10,9 +12,13 @@ gpu_data = g[:,1]
 cpu_data = cpu_data[cpu_data < 5]
 gpu_data = gpu_data[gpu_data < 5]
 
-plt.rc('font', **dict(family='serif'))
 
-plt.figure(figsize=(4, 4.2))
+
+#plt.rc('font', **dict(family='serif'))
+
+fig = plt.figure(1, (4,3.2))
+ax = Subplot(fig, 111)
+fig.add_subplot(ax)
 
 cpu_weights = np.ones_like(cpu_data)/float(len(cpu_data))
 gpu_weights = np.ones_like(gpu_data)/float(len(gpu_data))
@@ -21,10 +27,12 @@ gpu_weights = np.ones_like(gpu_data)/float(len(gpu_data))
 # plt.ylim(0.1, 10000)
 # plt.hist(gpu_data, bins=200, label='GPU', log=True)
 # plt.hist(cpu_data, bins=200, label='CPU', log=True)
-plt.hist(gpu_data, weights=gpu_weights, bins=50, color='#3b5b92', label='GPU', linewidth=0)
-plt.hist(cpu_data, weights=cpu_weights, bins=50, color='#77DD77', label='CPU', linewidth=0)
+ax.hist(gpu_data, weights=gpu_weights, bins=50, color='#3b5b92', label='GPU Memory', linewidth=0)
+ax.hist(cpu_data, weights=cpu_weights, bins=50, color='#77DD77', label='Main Memory', linewidth=0)
 plt.xticks([2.0, 3.0, 4.0, 5.0])
 plt.yticks([0,0.25,0.5])
+ax.axis["right"].set_visible(False)
+ax.axis["top"].set_visible(False)
 # plt.semilogy()
 
 plt.xlabel(u'Latency in \u00b5s')

data/ipedirectgma/plot.py

@@ -2,6 +2,7 @@
 
 import numpy as np
 import matplotlib.pyplot as plt
+from mpl_toolkits.axes_grid.axislines import Subplot
 
 c = np.loadtxt('ipedirectgma.cpu.txt')
 g = np.loadtxt('ipedirectgma.gpu.txt')
@@ -30,20 +31,28 @@ for i in range(128, 4096 + 128, 128):
     ysgs.append(gs)
 
 
-plt.rc('font', **dict(family='serif'))
-plt.figure(figsize=(4, 4))
+#plt.rc('font', **dict(family='serif'))
+
+fig = plt.figure(1, (4,3))
+ax = Subplot(fig, 111)
+fig.add_subplot(ax)
+
+# plt.figure(figsize=(4, 4))
 plt.xlabel('Packet size in (B)')
 plt.ylabel('Latency (us)')
 # plt.errorbar(xs, yscm, yerr=yscs, label='CPU')
 # plt.errorbar(xs, ysgm, ls='dotted', yerr=ysgs, label='GPU')
-plt.plot(xs, yscm, 'o-', markersize=4, label='Main memory', color='#77DD77')
-plt.plot(xs, ysgm, 'x-', label='GPU memory', color='#3b5b92')
+ax.plot(xs, ysgm, 'x-', label='GPU memory', color='#3b5b92')
+ax.plot(xs, yscm, 'o-', markersize=4, label='Main memory', color='#77DD77')
 plt.xticks([128, 1024, 2048, 2048+1024, 4096])
 plt.yticks([2,4,6,8])
 plt.xlim(0, 4200)
+ax.axis["right"].set_visible(False)
+ax.axis["top"].set_visible(False)
 plt.legend(loc='upper left', frameon=False)
 plt.savefig('latency.pdf', dpi=300, bbox_inches='tight')
 
+
 A = np.vstack([xs, np.ones(len(xs))]).T
 mc, cc = np.linalg.lstsq(A, yscm)[0]
 

data/throughput.py

@@ -14,12 +14,13 @@ plt.rc('font', **dict(family='serif'))
 
 #plt.figure(figsize=(8, 4))
 
-ax.semilogx(gpu_data[:,0], gpu_data[:,1], '*-', color='#3b5b92', label='GPU')
-ax.semilogx(cpu_data[:,0], cpu_data[:,1], 'o-', color='#77DD77', label='CPU')
+ax.semilogx(gpu_data[:,0], gpu_data[:,1], '*-', color='#3b5b92', label='GPU Memory')
+ax.semilogx(cpu_data[:,0], cpu_data[:,1], 'o-', color='#77DD77', label='Main Memory')
 ax.axis["right"].set_visible(False)
 ax.axis["top"].set_visible(False)
+plt.xlim(0, 7000)
 plt.xticks([1e4,1e6,1e8,1e10])
-plt.yticks([0,2000,4000,6000,8000])
+plt.yticks([0,2000,4000,6000])
 
 plt.xlabel('Data size in B')
 plt.ylabel('Throughput in MB/s')

figures/fpga-arch.svg

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paper.tex

@@ -343,7 +343,7 @@ PCIe link: FPGA-GPU    & x8 Gen3                        & x8 Gen3     \\
 \begin{figure}[t]
   \includegraphics[width=0.85\textwidth]{figures/throughput}
   \caption{%
-    Measured results for data transfers from FPGA to main memory
+    Measured throughput for data transfers from FPGA to main memory
     (CPU) and from FPGA to the global GPU memory (GPU).
 }
 \label{fig:throughput}