Guide to Madagascar programs |
If you get a "Cannot allocate memory" error, give the program a memsize=1 command-line parameter to force out-of-core operation.
int | memsize=sf_memsize() | Max amount of RAM (in Mb) to be used | |
---|---|---|---|
int | plane= | Two-digit number with axes to transpose. The default is 12 |
The sftransp program transposes the input hypercube exchanging the two axes specified by the plane= parameter.
bash$ sfspike n1=10 n2=20 n3=30 > orig123.rsf bash$ sfin orig123.rsf orig123.rsf: in="/var/tmp/orig123.rsf@" esize=4 type=float form=native n1=10 d1=0.004 o1=0 label1="Time" unit1="s" n2=20 d2=0.1 o2=0 label2="Distance2" unit2="km" n3=30 d3=0.1 o3=0 label3="Distance3" unit3="km" 6000 elements 24000 bytes bash$ <orig123.rsf sftransp plane=23 >out132.rsf bash$ sfin out132.rsf out132.rsf: in="/var/tmp/out132.rsf@" esize=4 type=float form=native n1=10 d1=0.004 o1=0 label1="Time" unit1="s" n2=30 d2=0.1 o2=0 label2="Distance3" unit2="km" n3=20 d3=0.1 o3=0 label3="Distance2" unit3="km" 6000 elements 24000 bytes bash$ <orig123.rsf sftransp plane=13 >out321.rsf bash$ sfin out321.rsf out321.rsf: in="/var/tmp/out132.rsf@" esize=4 type=float form=native n1=30 d1=0.1 o1=0 label1="Distance" unit1="km" n2=20 d2=0.1 o2=0 label2="Distance" unit2="km" n3=10 d3=0.004 o3=0 label3="Time" unit3="s" 6000 elements 24000 bytessftransp tries to fit the dataset in memory to transpose it there but, if not enough memory is available, it performs a slower transpose out of core using disk operations. You can control the amount of available memory using the memsize= parameter or the RSFMEMSIZE environmental variable.
Guide to Madagascar programs |