convert.py revision 1606 
17760SGiacomo.Gabrielli@arm.com# metric prefixes
27760SGiacomo.Gabrielli@arm.comexa  = 1.0e18
37760SGiacomo.Gabrielli@arm.competa = 1.0e15
47760SGiacomo.Gabrielli@arm.comtera = 1.0e12
57760SGiacomo.Gabrielli@arm.comgiga = 1.0e9
67760SGiacomo.Gabrielli@arm.commega = 1.0e6
77760SGiacomo.Gabrielli@arm.comkilo = 1.0e3
87760SGiacomo.Gabrielli@arm.com
97760SGiacomo.Gabrielli@arm.commilli = 1.0e-3
107760SGiacomo.Gabrielli@arm.commicro = 1.0e-6
117760SGiacomo.Gabrielli@arm.comnano  = 1.0e-9
127760SGiacomo.Gabrielli@arm.compico  = 1.0e-12
134486Sbinkertn@umich.edufemto = 1.0e-15
144486Sbinkertn@umich.eduatto  = 1.0e-18
154486Sbinkertn@umich.edu
164486Sbinkertn@umich.edu# power of 2 prefixes
174486Sbinkertn@umich.edukibi = 1024
184486Sbinkertn@umich.edumebi = kibi * 1024
194486Sbinkertn@umich.edugibi = mebi * 1024
204486Sbinkertn@umich.edutebi = gibi * 1024
214486Sbinkertn@umich.edupebi = tebi * 1024
224486Sbinkertn@umich.eduexbi = pebi * 1024
234486Sbinkertn@umich.edu
244486Sbinkertn@umich.edu# memory size configuration stuff
254486Sbinkertn@umich.edudef toFloat(value):
264486Sbinkertn@umich.edu    if not isinstance(value, str):
274486Sbinkertn@umich.edu        raise TypeError, "wrong type '%s' should be str" % type(value)
284486Sbinkertn@umich.edu
294486Sbinkertn@umich.edu    if value.endswith('Ei'):
304486Sbinkertn@umich.edu        return float(value[:-2]) * exbi
314486Sbinkertn@umich.edu    elif value.endswith('Pi'):
324486Sbinkertn@umich.edu        return float(value[:-2]) * pebi
334486Sbinkertn@umich.edu    elif value.endswith('Ti'):
344486Sbinkertn@umich.edu        return float(value[:-2]) * tebi
354486Sbinkertn@umich.edu    elif value.endswith('Gi'):
364486Sbinkertn@umich.edu        return float(value[:-2]) * gibi
374486Sbinkertn@umich.edu    elif value.endswith('Mi'):
384486Sbinkertn@umich.edu        return float(value[:-2]) * mebi
394486Sbinkertn@umich.edu    elif value.endswith('ki'):
404486Sbinkertn@umich.edu        return float(value[:-2]) * kibi
413102SN/A    elif value.endswith('E'):
423102SN/A        return float(value[:-1]) * exa
432736SN/A    elif value.endswith('P'):
444556Sbinkertn@umich.edu        return float(value[:-1]) * peta
454556Sbinkertn@umich.edu    elif value.endswith('T'):
462736SN/A        return float(value[:-1]) * tera
477760SGiacomo.Gabrielli@arm.com    elif value.endswith('G'):
487760SGiacomo.Gabrielli@arm.com        return float(value[:-1]) * giga
497760SGiacomo.Gabrielli@arm.com    elif value.endswith('M'):
507760SGiacomo.Gabrielli@arm.com        return float(value[:-1]) * mega
517760SGiacomo.Gabrielli@arm.com    elif value.endswith('k'):
522736SN/A        return float(value[:-1]) * kilo
532736SN/A    elif value.endswith('m'):
542736SN/A        return float(value[:-1]) * milli
552736SN/A    elif value.endswith('u'):
569338SAndreas.Sandberg@arm.com        return float(value[:-1]) * micro
574556Sbinkertn@umich.edu    elif value.endswith('n'):
589184Sandreas.hansson@arm.com        return float(value[:-1]) * nano
5910807Snilay@cs.wisc.edu    elif value.endswith('p'):
6010807Snilay@cs.wisc.edu        return float(value[:-1]) * pico
612736SN/A    elif value.endswith('f'):
622736SN/A        return float(value[:-1]) * femto
632736SN/A    else:
649338SAndreas.Sandberg@arm.com        return float(value)
652736SN/A
662736SN/Adef toLong(value):
67    value = toFloat(value)
68    result = int(value)
69    if value != result:
70        raise ValueError, "cannot convert '%s' to long" % value
71
72    return result
73
74def toInteger(value):
75    value = toFloat(value)
76    result = int(value)
77    if value != result:
78        raise ValueError, "cannot convert '%s' to integer" % value
79
80    return result
81
82def toBool(value):
83    if not isinstance(value, str):
84        raise TypeError, "wrong type '%s' should be str" % type(value)
85
86    value = value.lower()
87    if value == "true" or value == "t" or value == "yes" or value == "y":
88        return True
89    elif value == "false" or value == "f" or value == "no" or value == "n":
90        return False
91
92    raise ValueError, "cannot convert '%s' to bool" % value
93
94def toFrequency(value):
95    if not isinstance(value, str):
96        raise TypeError, "wrong type '%s' should be str" % type(value)
97
98    if value.endswith('THz'):
99        return float(value[:-3]) * tera
100    elif value.endswith('GHz'):
101        return float(value[:-3]) * giga
102    elif value.endswith('MHz'):
103        return float(value[:-3]) * mega
104    elif value.endswith('kHz'):
105        return float(value[:-3]) * kilo
106    elif value.endswith('Hz'):
107        return float(value[:-2])
108
109    raise ValueError, "cannot convert '%s' to frequency" % value
110
111def toLatency(value):
112    if not isinstance(value, str):
113        raise TypeError, "wrong type '%s' should be str" % type(value)
114
115    if value.endswith('ps'):
116        return float(value[:-2]) * pico
117    elif value.endswith('ns'):
118        return float(value[:-2]) * nano
119    elif value.endswith('us'):
120        return float(value[:-2]) * micro
121    elif value.endswith('ms'):
122        return float(value[:-2]) * milli
123    elif value.endswith('s'):
124        return float(value[:-1])
125
126    raise ValueError, "cannot convert '%s' to latency" % value
127
128def toClockPeriod(value):
129    """result is a clock period"""
130
131    if not isinstance(value, str):
132        raise TypeError, "wrong type '%s' should be str" % type(value)
133
134    try:
135        val = toFrequency(value)
136        if val != 0:
137            val = 1 / val
138        return val
139    except ValueError:
140        pass
141
142    try:
143        val = toLatency(value)
144        return val
145    except ValueError:
146        pass
147
148    raise ValueError, "cannot convert '%s' to clock period" % value
149
150
151def toNetworkBandwidth(value):
152    if not isinstance(value, str):
153        raise TypeError, "wrong type '%s' should be str" % type(value)
154
155    if value.endswith('Tbps'):
156        return float(value[:-3]) * tera
157    elif value.endswith('Gbps'):
158        return float(value[:-3]) * giga
159    elif value.endswith('Mbps'):
160        return float(value[:-3]) * mega
161    elif value.endswith('kbps'):
162        return float(value[:-3]) * kilo
163    elif value.endswith('bps'):
164        return float(value[:-2])
165    else:
166        return float(value)
167
168    raise ValueError, "cannot convert '%s' to network bandwidth" % value
169
170def toMemoryBandwidth(value):
171    if not isinstance(value, str):
172        raise TypeError, "wrong type '%s' should be str" % type(value)
173
174    if value.endswith('PB/s'):
175        return float(value[:-4]) * pebi
176    elif value.endswith('TB/s'):
177        return float(value[:-4]) * tebi
178    elif value.endswith('GB/s'):
179        return float(value[:-4]) * gibi
180    elif value.endswith('MB/s'):
181        return float(value[:-4]) * mebi
182    elif value.endswith('kB/s'):
183        return float(value[:-4]) * kibi
184    elif value.endswith('B/s'):
185        return float(value[:-3])
186
187    raise ValueError, "cannot convert '%s' to memory bandwidth" % value
188
189def toMemorySize(value):
190    if not isinstance(value, str):
191        raise TypeError, "wrong type '%s' should be str" % type(value)
192
193    if value.endswith('PB'):
194        return float(value[:-2]) * pebi
195    elif value.endswith('TB'):
196        return float(value[:-2]) * tebi
197    elif value.endswith('GB'):
198        return float(value[:-2]) * gibi
199    elif value.endswith('MB'):
200        return float(value[:-2]) * mebi
201    elif value.endswith('kB'):
202        return float(value[:-2]) * kibi
203    elif value.endswith('B'):
204        return float(value[:-1])
205
206    raise ValueError, "cannot convert '%s' to memory size" % value
207