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<I>cubic</I> values = style tolerance
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style = <I>error</I> or <I>warn</I>
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tolerance = fractional difference allowed (0 <= tol <= 1)
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<I>shift</I> = <I>yes</I> or <I>no</I> or <I>possible</I> = SRD bin shifting for better statistics
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<I>yes</I> = perform bin shifting each time SRD velocities are rescaled
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<I>no</I> = no shifting
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<I>possible</I> = shift depending on mean free path and bin size
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<I>shift</I> values = flag shiftseed
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flag = <I>yes</I> or <I>no</I> or <I>possible</I> = SRD bin shifting for better statistics
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<I>yes</I> = perform bin shifting each time SRD velocities are rescaled
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<I>no</I> = no shifting
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<I>possible</I> = shift depending on mean free path and bin size
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shiftseed = random # seed (positive integer)
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<I>tstat</I> value = <I>yes</I> or <I>no</I> = thermostat SRD particles or not
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<I>rescale</I> value = <I>yes</I> or <I>no</I> or <I>rotate</I> or <I>collide</I> = rescaling of SRD velocities
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<I>yes</I> = rescale during velocity rotation and collisions
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is required. A shift means that all of the SRD particles are shifted
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by a vector whose coordinates are chosen randomly in the range [-1/2
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bin size, 1/2 bin size]. Note that all particles are shifted by the
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same vector. The specified random number seed is used to generate
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these vectors. This operation sufficiently randomizes which SRD
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particles are in the same bin, even if lamda is small.
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<P>If the <I>shift</I> style is set to <I>no</I>, then no shifting is performed,
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but bin data will be communicated if bins overlap processor
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boundaries. An error will be generated if lamda < 0.6 of the SRD bin
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size. If the <I>shift</I> style is set to <I>possible</I>, then shifting is
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performed only if lamda < 0.6 of the SRD bin size. A warning is
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generated to let you know this is occurring. If the <I>shift</I> style is
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set to <I>yes</I> then shifting is performed regardless of the magnitude of
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<P>The shift seed is not used if the <I>shift</I> style is set to <I>no</I>, but
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same vector. The specified random number <I>shiftseed</I> is used to
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generate these vectors. This operation sufficiently randomizes which
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SRD particles are in the same bin, even if lamda is small.
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<P>If the <I>shift</I> flag is set to <I>no</I>, then no shifting is performed, but
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bin data will be communicated if bins overlap processor boundaries.
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An error will be generated if lamda < 0.6 of the SRD bin size. If the
272
<I>shift</I> flag is set to <I>possible</I>, then shifting is performed only if
273
lamda < 0.6 of the SRD bin size. A warning is generated to let you
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know this is occurring. If the <I>shift</I> flag is set to <I>yes</I> then
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shifting is performed regardless of the magnitude of lamda. Note that
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the <I>shiftseed</I> is not used if the <I>shift</I> flag is set to <I>no</I>, but
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must still be specified.
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<P>Note that shifting of SRD coordinates requires extra communication,