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I have started calculation of alpha quartz. I have written poscar as
Alpha SiO2:
4.9133
2.45670000 -4.25512922 0.00000000
2.45670000 4.25512922 0.00000000
0.00000000 0.00000000 5.40520000
Si O
18 26
Cartesian
1 -3.75899667 -1.99948522 -1.80173333
2 -3.75899667 1.99948522 -3.60346667
3 -3.23743926 -.62124887 -1.15995592
4 -3.75899667 -1.99948522 3.60346667
5 -3.75899667 1.99948522 1.80173333
......
44 ......
after ruuning vasp it said the
forrtl: severe (41): insufficient virtual memory
Image PC Routine Line Source
vasp 0000000000BF651A Unknown Unknown Unknown
vasp 0000000000BF54AC Unknown Unknown Unknown
vasp 0000000000BA0182 Unknown Unknown Unknown
vasp 0000000000B5C381 Unknown Unknown Unknown
vasp 0000000000B858FB Unknown Unknown Unknown
vasp 00000000004DFF8E Unknown Unknown Unknown
vasp 000000000041CE8F Unknown Unknown Unknown
vasp 0000000000406002 Unknown Unknown Unknown
libc.so.6 0000003E1DA1D974 Unknown Unknown Unknown
vasp 0000000000405F29 Unknown Unknown Unknown
.
If any body knows the solution pls let me know by forum or faruq2012@gmail.com.

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